Hire the best Internet Security specialists

Check out Internet Security specialists with the skills you need for your next job.
Clients rate Internet Security specialists
Rating is 4.8 out of 5.
4.8/5
based on 1,161 client reviews
  • $20 hourly
    I protect your content from getting stolen over the web and if someone is using your content without your permission, I report and take down the pirated content under DMCA. I provide services to online content creators such as writers, bloggers, photographers, and the companies who own intellectual content of any type, or copyright products. My motto is to end content piracy. Here is my Plan of action: 1) I start by searching for all the websites which are stealing and using your content, through all the web search engines (Google, Bing, Yahoo, AOL, Yandex, etc.) using multiple effective keywords. 2) I de-index (remove) those websites from the search engines. It will help to stop your audience go on the infringing website in the first place and this process also helps if the infringing website is not willing to remove the content directly. 3) Send DMCA takedown notices to the website owners and their hosting providers. 4) Reporting infringing content on social media platforms and video sharing websites like Facebook, Instagram, Pinterest, Reddit, YouTube, Twitter, Dailymotion, VK, OK, Youku, Archive.org, 4shared, Vimeo, Google-drive, and many more. 5) Keeping a complete follow-up of the work done. 6) Provide you with weekly reports regarding the work and progress. Why choose me? I leave no stones unturned in protecting your content. Moreover, I am committed to providing customer satisfaction. I make sure that my client is up to date about the work progress and is able to get a complete follow-up regularly. I put all my efforts in a task that I have assigned. Let me assist you with my quality service. Thank you.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Intellectual Property Protection
    Legal
    Trademark
    Copyright
    Legal Assistance
    Trademark Law
    Copyright Law
    Copyright Search
    Information Security
    Intellectual Property Law
    Legal Research
  • $49 hourly
    I have been designing, developing, optimising, maintaining, migrating, and supporting websites and servers for over two decades including over seventeen years specialising in Joomla both for end-users and web design agencies alike. I have worked on several hundred Joomla sites including multi language sites, taking on all kinds of Joomla related projects, including; building new websites, making websites responsive, producing AMP versions, migrating existing websites to Joomla, adding additional functionality, resolving security-related issues, SSL installation, implementing HTTP security headers, adding user management and subscriptions along with payment gateways, malware removal, customising extensions and templates, developing custom extensions, search engine optimisation, search engine marketing, content delivery, site speed optimisation, GDPR compliance, adding all kinds of forms along with multiple anti-spam solutions and auto field population using GeoIP services, support and training, and anything required to keep sites functional, secure, and stable. Joomla Search Engine Optimisation services include producing search engine friendly URL's, meta descriptions and header tags combined with dynamic HTML and XML site maps, integrated with Google Search Console, Bing Webmaster tools, and Google Analytics as well as Privacy-respecting analytics such as Fathom and Matomo. I have a Matomo self hosted setup on my own server which clients use and find very useful as apart from not needing a degree in Google Analytics to understand it by default it tracks outgoing links from their sites. I have a lot of experience importing all kinds of existing website data into both new and existing Joomla websites, including importing websites from HTML files, databases, and many Content Management Systems including Drupal, Episerver and WordPress as well as from all earlier versions of Joomla websites. I have been working with Jreviews since 2011, and apart from producing multiple custom themes, I have also added additional functionality such as advanced and saved searches and notifications when saved searches or saved user lists contain updates. I have also performed many customisations of the RSForm extension on multiple projects, including integrating forms with API's and other external systems for various applications including price comparison along with quote creation and e-commerce using multiple payment gateways in multiple currencies, and auto populating fields using GeoIP services. With online stores and event booking and ticketing within Joomla sites, I have customised both the Eshop and Events Booking Joomdonation extensions extensively over the last several years and I have a lot of experience with both. I also configure, build, deploy and manage high-speed Joomla optimised cloud hosting along with servers with multiple sites, installing and maintaining firewalls, virus, and spam control, backups, migrations, updates etc. I work with the Linux CLI as well as with Cpanel, Plesk and Spanel daily. Apart from Apache and Nginx I also work with LiteSpeed and OpenLiteSpeed Web Servers should a site have the need for speed. I have servers and storage and can clone a site to a development environment for analysis, debugging, updating, or development before transferring back to the source or high-speed Joomla optimized hosting. I provide a Support Helpdesk Ticketing system with automated tasks in place, for example, client sites get monitored for availability. If a site is unavailable, a ticket gets created. Apart from documenting all work and changes, clients can report bugs, ask questions, and request additional features. I also work with clients using Project Management and Collaboration Tools such as Asana, Basecamp, Freedcamp and Teamwork. I can manage projects and teams or act as part of a team providing support both internally and externally on a clients behalf. I have excellent communication skills, my native language is English, and with an engineering background, I am extremely detail orientated. Security and confidentiality are paramount. I use secure email and chat environments with end-to-end encryption and use Bitwarden to share passwords with multiple users and organisations.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    API Integration
    Apache Administration
    Linux System Administration
    Joomla Migration
    MySQL
    Web Hosting
    Joomla
    HTML
    PHP
    HTML5
    CSS
    Web Development
    Web Design
    Website
  • $30 hourly
    I'm a Penetration Tester and Cyber Security Specialist who is a professional in evaluating the security posture of Web-Applications (Websites) and ensuring the security of personal clients' online identities, accounts, devices, and networks, I've possessed my current knowledge through 3+ years of self-study and research plus 2+ years of work in the industry, protecting clients on a personal level and running vulnerability assessments against business websites, always leaving positive impression and impact, I hold a great record of being able to expertly provide the following services: - Perform comprehensive security checkups on Emails and Phone numbers and pinpoint security holes which often lead victims to be hacked with zero interaction nor awareness from them. - Assist in Account Recovery (Ex. Instagram, Facebook) - Educate thoroughly on the findings and remediations for a vulnerable target, equipping clients with enough information to trust themselves as they continue to utilize the technologies as normal with no fear of being targetted by hackers. - Investigate and educate on online frauds/scams, especially crypto ones, why and how they work, and how to distinguish between legit and not legit easily. - Clean up networks and devices from viruses/malware and ensure optimal patching for security. - Report fraud websites that impersonate legit businesses for a takedown. IMPORTANT: When it comes to cybersecurity-related services, there is a number of scammers not to be underestimated, whether within or outside of Upwork, therefore stay vigilant and keep in mind the following, 1. If you were scammed online via crypto, there's no one out there with the right to give a guarantee that they will be able to recover it for you despite how well furnished the so-called hacker's portfolio appears to be, the chance remains very slim and you should only pursue this kind of service for the sake of leaving no stone unturned knowing the high probability of failure, and you should only select a freelancer with a reputable profile and reviews to back up their activity because scammer accounts are usually fresh with no reviews and no verified ID, feel free to consult me to evaluate that. 2. Same applies to the request of hacking an account, there are complicated caveats that explain why it DOES NOT work the way you think it does but to keep it short, if you want someone's account hacked, aside from it being illegal and unethical and isn't the type of "service" I provide, the chance for it to work is about 1% to begin with, again, I'm available for consultation, account recovery is a different subject with a higher probability for success as long as it's your own account that was lost/hacked.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Malware
    Malware Removal
    Information Security
    Vulnerability Assessment
    System Security
    Network Security
    Information Security Consultation
    Website Security
    Penetration Testing
    Network Penetration Testing
    Ethical Hacking
    Security Testing
    Security Assessment & Testing
  • $90 hourly
    Security engineer and technical editor/writer specializing in cybersecurity architecture, operations, compliance/audit readiness, vulnerability scanning/pen testing, and technical documentation. Experience drafting security policies/procedures, and conducting cybersecurity framework mapping/pre-audit prep for NIST, PCI DSS, SOC2, HIPAA, HITRUST, GDPR, ISO 27001, and privacy and security frameworks. Proven track record of technical team and project management.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    HIPAA
    Technical Documentation
    NIST SP 800-53
    ISO 27001
    Technical Writing
    IT Compliance Audit
    SOC 2 Report
    Security Infrastructure
    Application Security
    Information Security
    Penetration Testing
    Cybersecurity Management
    System Security
  • $12 hourly
    🏆 TOP RATED PLUS Freelancer | ⚡ 12+ Years Experience | 🔥 10230+ Hours Worked I am PHP, WordPress Expert, Malware Specialist. I have 12+ Years of Experience in website Development and I've made a total of about 800+ websites and expertise in WordPress & PHP. - Client's satisfaction is my main goal, keeping that in my mind so far I have completed my all projects with their 100% satisfaction. I always got a very good rating and great feedback. I guarantee my work and make sure my clients are 100% satisfied with the work and that’s how I have achieved lots of client. I have years of experience in WordPress website design & development and Website migration, website transfer. I qucikly respond and communicate to make sure Client site is Malware free and I will provide my 100% to make sure the site is working the highest capacity. My clients love my work and I have lots of repeated satisfied clients. My Specialization in: BEST WEBSITE SECURITY SERVICES: ★★★★★★★★★★ ✔ WordPress Website Malware Removal. ✔ Fix hacked WordPress infected websites. ✔ Detect and Clean Wp-vcd malware,iframe hacks, JavaScript hacks, base64 hacks etc. ✔ Clean URL Injection, SQL Injection, Code Injection, Cross-Site Malware Warnings etc. ✔ Remove "This Site May be hacked" message from Google Search. ✔ Remove Google Malware Red Screen Warning ✔ Fix the "Japanese keyword hack" ✔ Google Blacklist Removal ✔ Malware & Hack Prevention(Security Hardening) ✔ Fix Suspended WordPress website by Hosting due to Malware Infection ✔ Website Security & Firewall Protection ✔ Clean all malware from your shared hosting account/Linux hosting server or any other hosting server. ✔ Full Vulnerability Scan and remove all Malware or Malicious codes. ✔ .htaccess Fixing (For Security) ★★★★★★★★★★ I guarantee my work, so give me chance, you will become my very happy and most satisfied client. Are Your WordPress website Got Hacked? Got Blacklisted By Google? Got Suspended from Hosting ? Dont worry i am here to make you free from these kinds of issue with full guranted satisfcation. ✅ Website Malware removal ✅ Website Hack Repair ✅ Website Virus removal ✅ Google Blacklist Removal ✅ Phishing Related Issues ✅ Websites Spam Removal ✅ Testing Vulnerability ✅ Penetration Testing and Patching ✅ Top Website Server Security ✅ Best WordPress Security ✅ Website Host Migration ✅ Themes development, setup and customization ✅ ACF - Advanced Custom Fields PRO ✅ On page SEO ✅ Website Testing ✅ Website Maintenance I am offering you @ TOP GURANTEED WEBSITE SECURITY HACK SOLUTION HERE @ * Instant Availability for any Kind of Support related to websites issues. * I want opportunities to showcase my skills & experience. Thanks for visiting my profile :)
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    PHP Script
    CMS Development
    Website Migration
    WordPress
    Malware
    Website Security
    Malware Removal
    Virus Removal
    WordPress Malware Removal
    PHP
    Web Development
    WebHost Manager (WHM)
    On-Page SEO
  • $70 hourly
    "Excellent ethical hacker. Very prompt, knowledgeable, and comprehensive" "Working with Konstantin was a good experience. Well rounded security experience helped us with number of different issues." My business motto is "Nil Satis Nisi Optimum" ("Nothing but the best is good enough") - because I know you feel the same about your business! CompTIA Security+ and Pentest+ seasoned certified security expert. My main specialization is information security system design, audit, vulnerability assessment and solutions implementation. I have experience with cloud (AWS, GCP) and on-prem infrastructure security, Linux and Windows OS, Active directory infrastructure and many different tools and software for specific security needs. In my job, I follow the best practice, local laws and international standards such as ISO 27000 and NIST 800 families.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Malware
    Network Penetration Testing
    Security Analysis
    Security Infrastructure
    Information Security Audit
    Financial Audit
    System Hardening
    Compliance
    Web Application Security
    IT Compliance Audit
    Security Engineering
    Security Policies & Procedures Documentation
    Application Security
    Information Security
    Network Security
    Firewall
  • $95 hourly
    I have 15+ years experience in a wide range of software and systems, and I save you time & money with my meticulous work & advice for going forward. I've worked for individuals, businesses, startups and 501(c)(3) non-profits. Skills and experience include: • All aspects of WordPress, including PHP, jQuery, HTML and CSS, Genesis and custom themes, Bootstrap CSS and Javascript, and custom fields and functions. • WooCommerce and Stripe, PayPal and other payment systems. • CloudFlare: security, DNS, WAF rules and SSL configurations. • Advanced Custom Fields (ACF) for custom themes and content input. • Site and server speed optimizations using GTMetrix and Google's PageSpeed as benchmarking tools. • SPF, DKIM and DMARC record configurations to ensure email deliverability, and email and SMTP services such as MailGun, SendGrid and Google Workspace. • Technical SEO: Yoast and All in One SEO, XML sitemaps and the Google Search Console and Analytics. • Linux server administration (Ubuntu, AlmaLinux, Debian): Apache Nginx Litespeed, MySQL/MariaDB, PHP configurations, security and performance, Let's Encrypt SSLs. • Paid Memberships Pro setup and customizations. • Web hosts: WP Engine, Linode, Cloudways, Digital Ocean, Liquid Web, Kinsta, Pantheon (git), Flywheel, Pressidium and Amazon AWS. • Migrations from Joomla, ExpressionEngine, Drupal, phpBB, Hubspot, TypePad, Movable Type, Blogger, Wild Apricot, and migrations from "plain" PHP & MySQL sites. • Mastodon server setup, configurations and scalability. Stack Overflow profile: stackoverflow.com/users/85385/markratledge WordPress Development profile: wordpress.stackexchange.com/users/268/markratledge
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    HTML5
    Database Optimization
    PHP
    Cloudflare
    WordPress
    Theme Customization
    WooCommerce
    Linux System Administration
    Firewall
    MySQL
    Page Speed Optimization
    Ubuntu
    Linux
  • $200 hourly
    🌟 Upwork TOP RATED Expert Cybersecurity Consultant with 100% Job success rate 🌟 ✅ Penetration Testing: Standard, Web application, mobile applications. ✅ Compliance: CMMC, DFARS, NIST 800-53, NIST 800-171, PCI, HIPAA, GDPR, ISO, SOC, SOX, GLBA, FedRAMP, CCPA, and more. ✅ Incident Response: Ransomware recovery, hacking response, forensic investigations. ✅ vCISO: Virtual Chief Information Security Officer. ✅ Vulnerability Management: Vulnerability Scanning Hello, It is great to meet you (virtually)! My name is Tyler. I have over 15 years of cyber-security experience in multiple verticals. I have worked with fortune 500 brands, government, military, and intelligence agencies. 🌟 I have provided expert cybersecurity and compliance consulting for startups to hundreds of businesses! 🌟 My core expertise resides in: compliance and governance (PCI, HIPAA, SOX, DFS, DFARS, ISO, NIST, GDPR, and more), ethical hacking, incident response, penetration testing, secure design and architecture, and public speaking. I am an excellent writer and also possess business savvy. Pairing technical expertise with exemplary writing skills is my forte. I am also fluent in Brazilian Portuguese. I currently hold the following educational degrees and certifications: ✅ Master of Business Administration (MBA) ✅ Bachelor of Science in Cyber-Security ✅ Certified Information Systems Security Professional (CISSP) ✅ GIAC Certified Incident Handler (GCIH) ✅ GIAC Security Essentials Certification (GSEC) ✅ Microsoft Certified Systems Expert (MCSE) ✅ Microsoft Certified Systems Administrator (MCSA) ✅ Microsoft Certified IT Professional (MCITP) ✅ CompTIA Security+ ✅ CompTIA A+ ✅ CIW Web Design Associate WHY CHOOSE ME OVER OTHER FREELANCERS? -Professionalism: I treat all clients with respect and honor their trust in my services. -Expertise: I have expertise across many cybersecurity, information technology, and compliance areas. -Responsiveness: Constant and effective communication is the key to a successful engagement. -Dedication: When i take on a task or project, you deserve my undivided attention and focus! -Versatility: I can easily pivot from many different tasks. Whether your project is a standard penetration test or a Chief Information Security Officer engagement, I have the ability, knowledge, experience, and credentials to adjust based on your requirements. -I have led over 150 incident response cases. -I have brought over 75 organizations to full compliance for DFARS, NIST, PCI, HIPAA, GDPR, and more. -I have conducted over 200 penetration tests. ✅ I will ensure that you get the results that you deserve. My clients trust me to complete their tasks and I ALWAYS deliver! Whether you are seeking a long term partner or a short term project, I am ready to deliver the high quality results that you deserve.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Certified Information Systems Security Professional
    HIPAA
    Defense Federal Acquisition Regulation Supplement
    Policy Writing
    GDPR
    Security Analysis
    Information Security
    Encryption
    Security Assessment & Testing
    Application Security
    Incident Response Plan
    Vulnerability Assessment
    Network Security
    Penetration Testing
  • $150 hourly
    I am the CEO & founder of BetterCyber Consulting, a cybersecurity consulting, technology, and managed services company helping startups and micro, small, and mid-sized companies create secure operating environments to increase business opportunities. I am also part of Upwork's Expert-Vetted Talent program. My priority is to create cost-effective, business-focused, and risk-driven cybersecurity solutions to help my clients secure their information assets against cyber threats. Before leaving corporate America, I held several cybersecurity positions, from operations to strategy and architecture, in Fortune 100 companies, such as PayPal Holdings, Inc. and Marathon Petroleum Corporation. I hold a bachelor's degree in Telecommunications Engineering from the Airforce University in Argentina, a master's degree in Information Security Engineering from the SANS Technology Institute, and many cybersecurity certifications, including CISSP (Certified Information Systems Security Professional) and GSE (GIAC Security Expert).
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Information Security
    Security Policies & Procedures Documentation
    Cybersecurity Management
    System Monitoring
    Cloud Security
    Information Security Audit
    Security Management
    Information Security Awareness
    Security Engineering
    Security Infrastructure
    Security Analysis
    Email Security
    PCI
    Network Monitoring
  • $999 hourly
    Computer Science Engineer/Ethical Hacker/Cyber Security Expert who has been providing security for corporate and individuals. ✌Cyber Security/Ethical Hacking - Securing mobile & Pc, running tests for vulnerabilities & server-side security (11+ experience) ✌Web development - JavaScript , Php (10+ experience) ✌App development - java , Cross-platform (7+ experience) ✌App/ Backend Development: Golang, Clojure, Scala, Ruby on Rails (5+ Experience) ✌CMS - Joomla, WordPress, Drupal (8+ experience) ✌Databases/Caches: Postgres, Redis I usually develop cross-platform and Android apps and build dynamic websites. I can develop the product very quickly and with high accuracy. I believe in customer satisfaction. U say it I develop it any language any software you need and if you want to secure your self from attacks I am always available. My work is fast and secure. *Price will vary on the complexity of the project Happy new year 2023 !!!
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Information Security
    Security Engineering
    Ripple
    Bitcoin
    Android App Development
    XML
    Ethical Hacking
    Cryptocurrency
    Digital Marketing
    PHP
    JavaScript
  • $20 hourly
    I am Web Developer and Security Expert.I have years of experience as a Security Expert and a web programmer. I offer following services with great quality of work as per client requirement: ✅ Malware removal ✅ Hack Repair ✅ Virus removal ✅ Google Blacklist Removal ✅ Phishing Removal ✅ Spam Removal ✅ Vulnerability Assessment ✅ Penetration Testing ✅ Website Server Security ✅ WordPress Security ✅ Restore online reputation ✅ Other vulnerabilities removal ✅ Optimize & Increasing Speed of Sites (Reducing Page Load Time). ✅ Website Migration I fully satisfied my clients with my work and provide full support. Please check my profile ratting and clients comments and their satisfaction about my work. ** I will remove the malware , fix the loophole of website, Install and tighten the security in such a way that website would not hack again. Its guarantee.** Thanks
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    WordPress Development
    WordPress Bug Fix
    WordPress Website
    Malware Website
    Antivirus & Security Software
    Virus Removal
    Malware Removal
    Website Security
    WordPress Security
    WordPress e-Commerce
    WordPress Optimization
    WordPress Malware Removal
    WordPress Theme
    WordPress
  • $60 hourly
    In the last years I did more than 100 Penetration-Tests and Security Assessments. Most of them on Web and Mobile applications with Finance Background implemented with various technologies and frameworks. (J2EE, ASP, PHP). Based on my daily work I am experienced with all common attack vectors and mitigation techniques. Since 2009 I am CISSP (Certified Information Systems Security Professional) and since 2017 I am CEH (Certified Ethical Hacker) certified. Please check also my UPWORK work history and client feedbacks. I am offering professional Black and Grey-box Penetration tests for Web and Mobile Applications. Sorry, I am not able to locate your girlfriend, recover your lost FACEBOOK, GMAIL, YAHOO etc. account or find your lost phone. Please do not invite me to such jobs. Before I start offensive tests, I may ask you for evidence that you are the site owner or to show me that you have admin access.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Wireless Security
    Java
    Application Programming
    Security Analysis
    Certified Information Systems Security Professional
    Network Security
    Information Security
    Penetration Testing
  • $100 hourly
    Magento Specialist / Shopify Developer
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    AWS Systems Manager
    Amazon Web Services
    Google Webmaster Central
    Amazon ECS
    Magento 2
    AWS Server Migration
    Amazon EC2
    WordPress
    MySQL
    Magento
    Shopify
  • $30 hourly
    I'm here to assist you build, fix, upgrade, migrate or maintain your Joomla Website. With over 800 projects, 700 clients, 2000 hours, and a 100% job success rate, your project is in safe and experienced hands. Over the last 13 years, I have gained significant experience and expertise in the following: 1. Joomla 1.0, 1.5, 2.5, 3.X and Joomla 4 Upgrades. I will upgrade any Joomla website (YES, including 1.0) from its version to the latest Joomla version 3.10 or Joomla 4, depending on extensions support. Other than the upgrade, I will rebuild your template to be mobile responsive. 2. Building Joomla websites from the ground up. 3. Cleaning up and restoring hacked Joomla websites. 4. Joomla template building and modification. 5. Making Joomla websites responsive. 6. Securing Joomla websites. 7. Optimizing Joomla websites for speed. 8. General maintenance of Joomla websites. ***************************** What Clients are saying. ***************************** "Kunule is awesome! Completed the job ahead of deadline and also went above and beyond the job requirements. Our job request was an upgrade to an existing website. Kunule not only upgraded the template but also created an entirely new website with a new modern take and increased functionality over the old template. Of course we liked his new version better than the old one." "I would rate him 20 stars and will recommend him to anyone needing Joomla work!" "Very satisfied with the quality of the work. He went above and beyond, offering enhancements I hadn't even asked for at no extra cost" "Great work - really thinks about the problem and comes up with solutions proactively...that's a rare thing." "Writing anything less than "this was a great gig done very professionally" would be a serious understatement.” "Absolutely excellent in all areas. I could work with this guy all day long - courteous, professional, fast and cost agreeable."
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Beautiful Soup
    pandas
    Web Scraper
    Bootstrap
    cPanel
    Joomla Migration
    Joomla
  • $25 hourly
    Certifications that I hold: CEH ( Certified Ethical Hacker) 740 MCSA ( Installation, Storage and Compute with Windows Server 2016) To whom it may concern, In the last years I did more than 400 Penetration Tests and Security Assessments. Most of them on Web and Mobile ( Android and iOS ) applications with Finance Background implemented with various technologies and frameworks, server security testing and hardening. Sample reports can be provided who is interested. ___________________________________________________________ Professional Load and Stress Testing if you are interested for your application ___________________________________________________________ Migration of infrastructure among cloud solutions ( AWS , Azure , Office 365, Google cloud). Many of you struggle to shift your infrastructure from On-premise to Azure , AWS ( amazon) or vice versa , I can do it in a short time frame with zero downtime if there is a possibility. And offer you support as long as you and your team are self reliable on new infrastructure. Regarding Windows Server Services ,I am focused on Microsoft enterprise-driven solutions: Windows Server( Active directory,IIS ,DNS, DHCP ,WDS , Hyper-V, Backup, Exchange, RPD farming) Expert troubleshoot Server Hardening and securing Windows and Linux servers. Monitoring software setup ( PRTG Paesler ,Nagious , Zabbix) Keen on Deadlines, fair on doing business together always ready to negotiate price
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Security Engineering
    Web Application Security
    NIST SP 800-53
    Windows Server
    OWASP
    Ethical Hacking
    Manual Testing
    Security Infrastructure
    Network Security
    Penetration Testing
    Application Security
    Kali Linux
    Vulnerability Assessment
    Security Assessment & Testing
  • $35 hourly
    Greetings! I am Mir, a seasoned Linux system administrator, and web security expert. With an enviable record on UpWork, boasting over 500 successful projects, I pride myself on being one of the most reliable experts available on the platform. 🏆500+ Successful Projects On Upwork 🏆8+ Years of Experience 🏆1000+ Upwork hours 🏆500+ 5-Star Reviews I specialize in web server security and firewall configurations, as well as malware removal, hack recovery, blacklist removal, web application penetration testing, computer forensics, ethical hacking, and Linux system administration and more. # Linux *- Linux System Administrator. #. Web Programming *- PHP, HTML, CSS, JavaScript, MySQL #. DNS *- DNS (Domain Name System) manager, Custom DNS Record, Domain Transfer *- Move websites to a new host without any downtime. #. Web Hosting *- Maintenance web hosting server. *- Troubleshoot and correct the server error. *- Website loading speed optimization. *- Makes the server faster by changing the configuration of the server. #. WordPress *- WordPress Website Development *- Page Speed Optimizations' *- Website Hardening (WP Security) # eMail *- Check for email blacklists and remove any that are found. *- Fix the email deliverability problem. #. Analytics *- Google Analytics, Piwik, and custom analytics. #. Other ✔Cloudflare ✔AWS ✔WordPress ✔VirtualBox ✔Bitnami ✔Elementor ✔Plesk ✔cPanel ✔Google Search Console ✔SMTP ✔Apache ✔Nginx ✔RTMP ✔VPN - Wireguard/OpenVPN ✅Many more.. 🔯 P.S. I want to reassure you that I will not be including the URL of your website in my portfolio. I highly value and respect your privacy. Upon completion of my task, I strongly suggest updating the password you have provided to me and deactivating my access. Thank you. ☎If you're looking for a reliable, professional, and highly skilled web server expert, I'm here to help. Contact me to discuss your project needs and goals.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Amazon Lightsail
    System Administration
    Malware Removal
    DNS
    Virtual Private Server
    Cloudflare
    Web Hosting
    Application Security
    WordPress Malware Removal
    Domain Migration
    WordPress
    MySQL
    PHP
    Ecommerce Website
  • $100 hourly
    Overview: 🏆 For businesses that understand the true value of unmatched expertise, seamless user experiences, and top-tier web security, welcome. With over 16 years in the heart of the ever-evolving digital landscape, I’ve established myself as the go-to professional for clients who want nothing short of the best. Why Choose Me?: 👇 👉 Deep Technical Mastery: Whether it's customizing LEMP stacks for peak performance, deploying advanced security measures against sophisticated threats, or developing intricate WordPress sites, I bring to the table a wealth of experience that few can rival. 👉 Holistic Solutions Architect: I don’t just fix problems; I anticipate them. I view each project from a 360-degree perspective, ensuring that every component, from server back-end to user-interface, functions in perfect harmony. 👉 Exclusive Clientele: My dedication to providing premium services means I'm selective about the projects I undertake. This ensures that each client gets my undivided attention, leading to results that consistently exceed expectations. 👉 Psychological Impact: A website or application isn't just a collection of code. It's an experience, a message, a brand. I grasp the psychological underpinnings that drive user engagement and brand loyalty, ensuring that your digital presence resonates deeply with your audience. 👉 Reliability: In the digital realm, threats and opportunities emerge at breakneck speeds. My clients rest easy knowing they have a steadfast ally, always ready to adapt, innovate, and protect. Certainly! Explore my closed contracts to see glowing testimonials from satisfied clients, and If you're a business that refuses to settle for average and demands only the pinnacle of expertise and results, I invite you to reach out. Let's create something extraordinary together. Expertise Highlights: 🎖️ 👉 As a solution architect, I bring holistic digital strategies tailored for every business need. 👉 Deliver unparalleled security experiences using both open-source and finely-tuned tools, including Maldet, rootkits, Imunify360, CSF, Fail2Ban, ClamAV, SELinux, ModSecurity, UFW, firewalld, and iptables. 👉 Expertise in malware removal, website cleanups, and ensuring sites are compliant and ready for Google Ads. 👉 Specialize in addressing and rectifying SEO hacks where sites display incorrect, non-relevant results. 👉 Provide thorough audits and detailed reports to maintain transparency and guide strategic decisions. 👉 Proficient in managing and monitoring servers using industry-leading tools like New Relic, DataDog, , and Solarwinds. 👉 Skilled in leveraging technology suites such as Git, SVN, OpenVZ and Docker for optimal development workflows. 👉 Extensive experience with an array of project management tools, ensuring seamless collaboration and project execution. 👉 Expert management of major platforms including AWS, GCP, Azure, Oracle, Linode, Digital Ocean, Vultr, Gridpane, Cloudways, and more. 👉 Offer seamless migrations between hosting platforms, VPS, and dedicated servers, even those with extensive databases. 👉 Deliver database optimization services, WordPress customization, WooCommerce development, and speed optimization solutions. 👉 Custom WordPress development tailored to your needs. 👉 Extensive expertise in WooCommerce development and bespoke customizations. 👉 Specialize in WordPress speed optimization for faster site performance. 👉 Well-acquainted with major hosting providers such as GoDaddy, Namecheap, Hostinger, HostGator, and many more. 👉 Offer tailored PHP solutions, supporting multiple PHP installations such as PHP 7.4, PHP 8, PHP 8.1. 👉 Compatibility with various database versions including MariaDB and MySQL8. 👉 Expert in setting up diverse server environments, ensuring the best fit for your needs, including Nginx, Apache, LiteSpeed, IIS, and Tomcat. 👉 Master of Cloudflare intricacies, specializing in DNS management, SSL configurations, and more. 👉 Skilled in setting up end-to-end email campaign environments for your marketing requirements, including configuring emails, domains, and warming up mail deliverability. Best Aty
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Web Hosting
    Network Administration
    Website Security
    Linux System Administration
    WordPress Plugin
    Web Application Security
    Mail Server Implementation
    WordPress Malware Removal
    Penetration Testing
    MySQL
    Virus Removal
    Network Security
    API
    PHP
  • $27 hourly
    I am a highly skilled and detail-oriented Virtual Assistant with a diverse background in IT and personal assistance. I have a strong passion for virtual work and always strive to stay updated with the latest tools and techniques. My previous experience as a personal assistant to the CEO of the Princess Group in Dubai and my bilingual fluency in Tajik, Russian, and English have honed my communication and interpersonal skills, allowing me to effectively handle customer inquiries and technical support. As a Virtual Assistant, I offer a range of services including: E-commerce and drop shipping management on Shopify Lead generation and data mining on social media platforms Customer service through email, phone, live chat, and technical support Travel management, event planning and organization, appointment scheduling, and daily activity planning Content creation on Canva for social media Simultaneous translations between English, Russian, and Tajik CRM data entry and cleanup, online research, and administrative support Proficiency in Microsoft Office, Google Docs, and data entry With a typing speed of 60-70 WPM and 95-100% accuracy, I am confident in my ability to deliver high-quality results in a timely manner. Please don't hesitate to reach out if you think I can be of assistance. Excellent user of DAT ONE and Amazon Relay platforms Best regards, Avazkhon S
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Virus Removal
    Google Ads
    Facebook Ads Manager
    Translation
    Ethical Hacking
    Customer Support
    Penetration Testing
    Facebook
    Russian to English Translation
    Administrative Support
    Web Development
    Web Design
    Data Entry
  • $99 hourly
    I am a professional freelancer with THIRD PARTY LIABILITY INSURANCE for over two and a half million dollars, so you are in safe hands. I am Microsoft Certified Trainer, Office 365, GCP, AWS, and Azure Expert. Honored as Microsoft Most Valuable Professional in Azure area. I cover architecting, security, administrating, and migration of all three major clouds – Azure, AWS, and GCP. Apart from the main area of Cloud expert in the field of infrastructure servers Windows Server 2003-2016, Microsoft Active Directory, Hyper-V Private Cloud, IIS, System Center, SQL. Private Cloud, System Center, Hyper-V, Open Stack Expert, and all Microsoft products Expert. Linux Server administrator. I am the holder of certificates: • pSeries AIX UNIX Support • First Certificate in English • PRINCE2 Practitioner • Microsoft Certified: Azure Administrator Associate • Microsoft® Certified Solutions Expert: Cloud Platform and Infrastructure • Microsoft® Certified Solutions Associate: Cloud Platform • Microsoft® Certified Solutions Expert: Productivity • Microsoft® Certified Solutions Expert: Data Management and Analytics • Microsoft® Certified Solutions Associate: Windows Server 2016 • Microsoft® Certified Solutions Associate: Windows 10 • Microsoft Specialist: Configuring Windows Devices • Microsoft Specialist: Architecting Microsoft Azure Solutions • Microsoft Certified Solutions Developer: Azure Solutions Architect • Microsoft Specialist: Developing Microsoft Azure Solutions • Microsoft® Certified Solutions Expert: Data Platform • Microsoft Specialist: Implementing Microsoft Azure Infrastructure Solutions • Microsoft® Certified Solutions Associate: Office 365 • Microsoft® Certified Solutions Expert: Private Cloud • Microsoft® Certified Solutions Expert: Messaging • Microsoft® Certified Solutions Associate: SQL Server 2012/2014 • Microsoft® Certified Solutions Associate: Windows Server 2012 • Microsoft® Certified Solutions Expert: Server Infrastructure • Microsoft® Certified IT Professional: Enterprise Administrator on Windows Server 2008 • Microsoft® Certified Solutions Associate: Windows Server 2008 • Microsoft® Certified Technology Specialist: Windows Server 2008 Applications • Microsoft® Certified Technology Specialist: Windows Server 2008 Network • Microsoft® Certified Technology Specialist: Windows Server 2008 Active Directory • Microsoft® Certified Technology Specialist: Microsoft Exchange Server 2010
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Database Administration
    Disaster Recovery
    Microsoft Exchange Server
    Microsoft Office 365
    Microsoft Azure SQL Database
    Linux System Administration
    Windows Server
    Alexa Skills Kit
    AWS Lambda
    Amazon ECS
    Azure App Service
    Microsoft Azure
  • $60 hourly
    Since 2014 I work professionally as a Pen Tester/Security Researcher. Between 2008-2013, prior switching full time to info sec, I've worked as a Programmer (C/C++, PHP, Java, node.js) and DevOps (AWS-based environments). Currently I work under my own brand (Z-Labs) delivering Penetration Testing / Adversary Simulation Exercises services to clients around the globe. I pride myself for: 1. Offering high quality penetration testing services conducted in safe and controlled manner by certified Security Expert (Since 2014 I'm CISSP, since 2016 I'm OSCP and since 2017 I hold SANS GXPN certification). 2. Putting emphasis on advanced manual attack techniques and on adherence to industry-wide standards and methodologies: OWASP TOP 10, OWASP ASVS, OSSTMM and PTES during the testing. 3. Delivering actionable and professionally written reports (ready to be shared with your stakeholders at all levels). 4. Possessing advanced R&D capabilities Offered Services: 1. Network Penetration Testing / Adversary Simulation Exercises 2. Web Application Penetration Testing 3. Cloud Security Assessments 4. C/C++ source code audits and vulnerability research Offered Solutions: 5. Continuous, Expert-assisted Vulnerability Assessment
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Compliance Consultation
    Certified Information Systems Security Professional
    Web Application Security
    Cloud Security
    Network Penetration Testing
    Web App Penetration Testing
    Security Infrastructure
    Cloud Security Framework
    ISO 27001
    IT Compliance Audit
    Penetration Testing
    Information Security
    Security Assessment & Testing
    Vulnerability Assessment
    Cybersecurity Management
  • $145 hourly
    ✅ Upwork Top 1% Expert Vetted ✅ 5500+ Hours ✅ 100% Success Score ✅ Free Strategy Call ✅ Testimonials Hi, I'm Adam from London, in the UK. My full profile including more testimonials, technical qualifications and a link to book a free strategy call is available at consultwithadam.com I've worked with hundreds of Clients across the world to bring their projects from idea to completion and profitability. I'm a qualified Chartered Engineer (CEng), and I specialise in CTO and technical leadership roles with a focus on enterprise web application development, security and scalability. My tech qualifications include CISSP, CISA, CISM, and OSCE. I'm also a Chartered IT professional member of the BCS (MBCS CITP). Why me? - Guaranteed project success, on time, every time. There's nothing worse than flakey developers, poor communication, missed deadlines and overstretched budgets. - Top quality product and architecture, built and secured to the highest professional standards - Supporting platforms that get millions of monthly hits. - Very experienced in jumping in and rescuing failing/failed projects. - Have access to a top pool of expert development talent if required. - Responsive and communicative with regular updates. - Highly qualified and experienced. Dozens of testimonials both here on Upwork and on LinkedIn - Driven, responsive and efficient, known for going the extra mile and solving the “impossible”. My full profile available at consultwithadam.com
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Information Security Consultation
    Network Security
    Product Roadmap
    LAMP Administration
    Information Security
    Android
    Embedded System
    Laravel
    iOS
    Web Development
    PHP
    Penetration Testing
    Web Application
    Vulnerability Assessment
  • $50 hourly
    You come first. Your requirements are my desire, fully accomplish your needs - my pleasure. 🥇 Skills: Web Hosting: 📤 MIGRATION MASTER and FASTER ✔️ Web Hosting Control Panels: cPanel, Plesk, DirectAdmin (Management) ✔️ Billing Systems: WHMCS (Management) 🐧 Linux server administration CMS: 🚀 Wordpress Website Speed Optimisation ✔️ Wordpress, Joomla. DLE, Drupal and etc. (Management and Development) Web Design: ✔️ Graphics Software: Photoshop, Adobe XD, Figma, Adobe Illustrator ✔️ High-Conversive Landing Pages Bonus Skills: ✔️ SEO ✔️ HTML/CSS/PHP Basics 🏆 Experience: ✅ 9 year Web Hosting technical support. ✅ 5 year Wordpress Project Development ✅ 1 Year of UI/UX 👨‍💻 Attitude: When working for a particular project my goal is to satisfy all requirements of an employer and preserve the high quality of the services.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Technical Support
    Web Hosting
    cPanel
    eCommerce
    Virus Removal
    Malware
    Domain Migration
    WordPress
    WooCommerce
    PHP
  • $90 hourly
    Top-ranked self-motivated professional DevOps and Cloud architect with strong work ethic and productive self-starter – proven with success being a freelancer at Upwork(ex-oDesk). Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals. Among my long-term customers: - Stanford University - Motorola - Bwin Interactive - Fairchild Semiconductor - Texas Instruments Effective leader - Took over leadership and managed team resources to achieve goals meeting deadlines Experience: 24+ years as an Systems Administrator 17+ years as Network Engineer 12+ years as Cloud Expert and SaaS Architect 8+ years @ DevOps Freelancer for last 14 years (over 70,000hrs worked @oDesk/Upwork)
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Deployment Automation
    CI/CD
    Infrastructure as Code
    Docker
    Unix Shell
    MySQL
    Network Administration
    Linux System Administration
    Amazon Web Services
    DevOps
  • $30 hourly
    I'm a software developer / server administrator / MSP / and cybersecurity consultant from Canada with excellent communication skills and attention to client needs. I can develop new solutions, and update, migrate or secure existing applications and systems. I entered the IT industry in 1995 and hold a high standard, guarantee my work, and can provide continuing support and hosting. I look forward to meeting new clients. I especially am happy to discuss your project details with you before hiring to help us together gain insight in to your needs and expectations. My services include: - Custom development & hosting (including WordPress) - Technical and research writing for IT subjects - Marketing content writing for IT subjects - Updating and modifying existing apps / services - Migrating apps / services - Server maintenance, security, and automation scripting - Lead generation for business - Data-services such as scraping, statistical analysis, data-conversion, data-extraction, etc. - Developing educational content such as videos, lesson-plans, etc. I look forward to a discussion about your needs!
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Website Migration
    Linux System Administration
    Policy Analysis
    PHP
    Python
    System Security
    Vulnerability Assessment
    Data Science
    WordPress
    Web App Penetration Testing
    Website Security
    Data Scraping
    Cybersecurity Tool
    Content Writing
  • $35 hourly
    Experienced WordPress web developer, available 24h, on your service for urgent tasks and long term projects, same as complete server maintenance on daily/weekly level for all time zones! -WordPress website complete development per urgent basis -WordPress websites maintenance, monitoring weekly/monthly packages -Security works / cleaning / protection of WP sites -Urgent bugs/errors solving -Certified IT Security (London University) specialist and website malware removal expert! More than 5000 websites successfully cleaned and protected! I am a Bachelor of Science in Software and Web Development, specializing in WordPress, E-Commerce, HTML, CSS(3), jquery, JavaScript, PHP, MySQL, Cryptography, and a lot more. Particularly concerned with and proficient in high-level computer security, protection, and threat prevention and removal tactics. -Stanford University certified Human-computer interaction and UI expert. CMS platform designer with particular attention to WordPress theme building, modifications, and customization. Expert in plugin and code tweaking, infrastructure design, and bug prevention and fixes. Extremely high-level computer skills and strong ability for adaptation under different working conditions and environments. Ability to work with many modern handhelds, desktops, and interaction devices.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Domain Migration
    Page Speed Optimization
    WordPress Malware Removal
    Malware Removal
    WordPress Migration
    Virus Removal
    WordPress Bug Fix
    Linux
    WordPress e-Commerce
    PSD to WordPress
    Yoast SEO
    Website
    WordPress
    Web Design
    Search Engine Optimization
    PHP
  • $130 hourly
    ✅ Top Rated Plus and Top-Earning specialist in Microsoft Intune, Microsoft Defender, and Okta ✅ Successfully deployed 50+ Microsoft Defender solutions ✅ Successfully implemented 50+ Microsoft Intune solutions ✅ Successfully set up 20+ Okta configurations ✅ US-Based ✅ 15+ years of professional experience serving Fortune 1000 companies, government agencies, and Managed Service Providers (MSPs) I'm Franklin, a seasoned IT expert with over 15 years of experience. Specializing in Microsoft Defender, Microsoft Intune, and Okta, I'm dedicated to leveraging these tools to enhance operational efficiency, security, and user experience in today's digital workplaces. Leveraging my comprehensive career experience, I offer expert services in the following areas: 🔹Microsoft Defender Implementation and Management: 1.) Develop a customized implementation plan tailored to your organization's needs. 2.) Configure the software to maximize security and user accessibility. 3.)Perform regular maintenance checks to ensure the system's optimal performance. 4.) Troubleshoot and resolve any issues quickly to minimize downtime. 5.) Conduct staff training to promote understanding and proper system utilization. 🔹Microsoft Intune Administration: 1.) Set up and configure Microsoft Intune to align with your company's device and application management policies. 2.) Streamline the deployment of applications across various devices. 3.) Monitor device compliance with your company's security standards. 4.) Facilitate the efficient retirement of devices and applications when necessary. 🔹Okta Administration and Customization: 1.) Implement Okta to streamline your company's identity and access management. 2.) Customize the Okta environment to fit your specific organizational needs. 3.) Train your employees to ensure smooth user authentication and application access. 4.) Provide ongoing administration and support to ensure optimal operation. 🔹Virtual IT Helpdesk Services: 1.) Offer round-the-clock IT support to resolve your team's technical issues. 2.) Employ remote troubleshooting techniques to address and resolve issues quickly. 3.) Provide software and hardware installation and configuration assistance. 4.) Deliver regular system updates and security patches. 5.) Conduct IT training sessions to improve staff knowledge and capabilities. 🔹IT Consultation: 1.) Analyze your current IT environment to identify areas for improvement. 2.) Develop a strategic IT roadmap for future technology investments and implementations. 3.) Recommend the best tools and processes to optimize your digital workspace. 4.) Facilitate the integration of new technologies into your existing IT infrastructure. 5.) Each service is designed to enhance your business's IT environment, improve operational efficiency, bolster security, and provide your team with the support they need to perform their tasks effectively. Each service is designed to enhance your business's IT environment, improve operational efficiency, bolster security, and provide your team with the support they need to perform their tasks effectively. I appreciate your consideration. I look forward to the opportunity to contribute to your organization's success. Certifications: 🔹 CISSP - Certified Information Systems Security Professional 🔹CISM - Certified Information Security Manager 🔹Microsoft Certified: Security Operations Analyst Associate 🔹Microsoft Certified Azure Solutions Architect Expert 🔹Microsoft Certified: Identity and Access Administrator Associate 🔹Microsoft Certified Solutions Expert (MCSE), Cloud Platform and Infrastructure. 🔹VMware Certified Professional 6.5 - Data Center Virtualization 🔹Microsoft Certified Azure Administrator Associate
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Microsoft Azure
    Virtual Machine
    Office 365
    OKTA
    Microsoft Active Directory
    Virtualization
    Security Infrastructure
    Tech & IT
    Virtual Desktop Infrastructure
    Microsoft Endpoint Manager
    Cloud Security
    Intrusion Detection System
    Security Engineering
    System Administration
    Autopilot
  • $50 hourly
    🌟Available for Meetings & Calls 🌟 🏆 Top Rated Expert (Among Top 5% on Upwork & 100% Satisfaction from Clients ) ✅Certified Ethical Hacker ✅ ✅Top rated Cybersecurity Expert ✅ ✅ OWASP Certified Security Tester ✅ ✅ Android Penetration Tester ✅ ✅ Webapp Penetration Testert✅ ✅ WebApplicaiton Penetration Tester ✅ ✅ Network Penetration Tester✅ ✅Malware Removal Sites , Device ,Network ✅ Greeting, I have years of experience being an Ethical Hacker ,Penetration Test,Information ,Network Security & Wordpress Development, I can successfully complete your assignment faster and with higher pleasure than anyone. why and how? 🌟🌟🌟Please Keep Reading🌟🌟🌟 So Basically, I can surely assist you in this regard if you are considering anything that has been said. I have a Master's degree in Cyber security and am well-versed in the fields of network security, forensics, cloud computing, and information security. have completed training programs with several government agencies. numerous college-level projects completed were employed as a policymaker. Intern at eShikhon completed. furthermore has an experienced R&D person who is trained in cutting-edge mobile and wireless security. working as a Consultant and Freelance Cyber Security Expert ► Web-APP Penetration Testing ► Android Pentest Web Applications Penetration Testing ► Network Penetration Testing ► Mobile Applications Penetration testing ► API Penetration Testing _________________________________________________________________________ - Cloud Computing - Azure Security - Web hosting and security - DEV OPS ENGINEERING - ISO - OSINT - OSCP - IEC - Microsoft 365 Security - Cryptocurrency analysis - G-Suite - Secure Wordpress Site - Network Pentration Test - Template changes (cosmetic and functional) - Optimize related posts - WordPress administration - SSL certificates - Plugin updates, maintenance and recommendations - Custom plugin development in Javascript, CSS, HTML and php - increase Site security / decrease vulnerability - Minify CSS & Java script - Clean up orphaned posts, media duplicates, etc. - Optimize hosting -WordPress theme development - develop a small app on Wordpress to generate automated offers and push it in our Salesforce instance through REST API. Good Command on given below : * Python (including frameworks such as Django(3+ years) * 4+ years of experience in software development * LMS * Scripting by Python & Bash * WordPress Theme Development * WordPress Plugin * WordPress update (core) * JavaScript * HTML * CSS * PHP [Some of My Client Reviews] 🌟🌟🌟🌟🌟"Mr Jahangir is a very resourceful and knowledgeable person who knows his job. He was able to decipher my issue and helped me resolve it and guided me to the things that needed to be done to improve my website performance. Best Ethical Hacker , I will certainly use his expertise in future"🌟🌟🌟🌟🌟 🌟🌟🌟🌟🌟"Dedicated to the task with the highest level of competence and professionalism. A real expert and a breeze to work with. Thanks 👍"🌟🌟🌟🌟🌟 🌟🌟🌟🌟🌟"Highly recommend, Great Hacker will try every possible mean to get the job done"🌟🌟🌟🌟🌟 🌟🌟🌟🌟🌟"Super fast and easy to work with. Will definitely hire MD again""🌟🌟🌟🌟🌟 🌟🌟🌟🌟🌟"Very good freelancer! Does good work and is superbly (I can't find a more positive adjective) flexible to problems!" 🌟🌟🌟🌟🌟 🌟🌟🌟🌟🌟"He is responsive and responsible. Also, he is a quick learner." 🌟🌟🌟🌟🌟 I aspire to be someone with strong work ethic. I always strive to build lasting ties with my clients and leave them happy with my work! I'll be a good guy on the project, I promise.
    vsuc_fltilesrefresh_TrophyIcon Internet Security
    Website Security
    Virus Removal
    Web App Penetration Testing
    Network Penetration Testing
    Ethical Hacking
    Security Engineering
    Network Security
    Digital Forensics
    Penetration Testing
    Vulnerability Assessment
    Malware Removal
    Information Security
    Cybersecurity Management
    Security Assessment & Testing
  • Want to browse more freelancers?
    Sign up

How it works

 

1. Post a job (it’s free)

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by 5M+ businesses

How to Hire Internet Security Specialists

Encryption Basics: How It Works & Why You Need It

What is encryption and how does it work?

While IT security seeks to protect our physical assets—networked computers, databases, servers, etc.—encryption protects the data that lives on and between those assets. It’s one of the most powerful ways to keep your data safe, and while it isn’t impenetrable, it’s a major deterrent to hackers. Even if data does end up getting stolen, it will be unreadable and nearly useless if it’s encrypted.

How does it work? Encryption—based on the ancient art of cryptography—uses computers and algorithms to turn plain text into unreadable, jumbled code. To decrypt that ciphertext into plaintext, you need an encryption key, a series of bits that decode the text. The key is something only you or the intended recipient has in their possession. Computers are capable of breaking encrypted code by guessing an encryption key, but for very sophisticated algorithms like an elliptic curve algorithm, this could take a very, very long time.

Here’s a very simple example. Say you want to encrypt this sentence: “Protect your data with encryption.” If you use a 39-bit encryption key, the encrypted sentence would look like this:

“EnCt210a37f599cb5b5c0db6cd47a6da0dc9b728e2f8c10a37f599cb5b5c0db6cd47asQK8W/ikwIb97tVolfr9/Jbq5NU42GJGFEU/N5j9UEuWPCZUyVAsZQisvMxl9h9IwEmS.”

You can send that encrypted message to someone, separately share the key, then they’re able to decrypt it and read the original sentence.

If you send an encrypted email, only the person with the encryption key can read it. If you’re using an encrypted internet connection to shop online, your information and credit card number are hidden from unauthorized users, like hackers, illegal surveillance, or identity thieves. If you encrypt data before syncing it with the cloud, the cloud—or anyone breaking into it—can’t read that data. Even iPhones are encrypted to protect their data if they’re lost or stolen—something that has made headlines when organizations like the FBI or the NSA need access to them for investigations.

But encryption can be used for bad, too. Ransomware attacks are becoming more prevalent, also called denial of service (DOS) attacks that use encryption software to lock users out of their computers until they pay a fee.

Encrypting Data “In Transit” vs. Data “At Rest”

Basically, the data we encrypt is always either:

  • In transit, meaning it’s moving via email, in apps, or through browsers and other web connections
  • At rest, when data is stored in databases, the cloud, computer hard drives, or mobile devices

Encrypting this data is achieved mainly through:

  1. Full disk encryption (FDE): the primary way to protect computer hard drives and the at-rest data on them. Any files saved to the disk (or an external hard drive) are automatically encrypted. There are intermediate options for disk encryption, as well–folder encryption, volume encryption, etc.–that aren’t quite full-disk encryption, but in between.
  2. File encryption: a way to encrypt at-rest data on a file-by-file basis so it cannot be read if intercepted. This isn’t automatic, but it’s beneficial because that data will stay encrypted after it’s left its place of origin.
  3. End-to-end (E2E) encryption: obscures any content of messages so only senders and receivers can read it, like the early Pretty Good Privacy (PGP) email encryption software. The idea with E2E encryption is that it tackles all the vulnerabilities on the communication chain: the middle (intercepting a message during delivery), and both ends (sender and receiver). This is not just a niche offering anymore, either—platforms like Facebook Messenger and Apple’s iMessage have E2E encryption now, too.
  4. Encrypted web connections: via HTTPS, encrypted web connections use a Secure Sockets Layer (SSL) or transport layer security (TLS) protocols. With secure internet connections, we’re able to have better protected communications on the web. These aren’t impenetrable, but there’s less risk of exploitation. How it works: HTTPS uses SSL and TLS certificates when a browser and server communicate over the web. These are encryption keys, and when both browser and server have them, they’re authorized to access the encrypted data that’s passed between them. It’s a very basic, but very important, security measure when connecting to the web. If you’ve ever seen “https” instead of “http,” or noticed a lock in the URL bar of your browser, you’re accessing a secure site.
  5. Encrypted email servers: S/MIME (Secure/Multipurpose Internet Mail Extensions) public key encryption essentially gives SMTP (simple mail transfer protocol) email servers a leg up by allowing them to send and receive encrypted messages, not just simple text messages.
  6. Pre-encrypting data that’s synced with the cloud: there’s plenty of software available that can pre-encrypt data before it even gets to the cloud, making it unreadable by the cloud or anyone who hacks into it. Note that any files still stored on the local machine aren’t encrypted and are still vulnerable. This accounts only for files sent to the cloud encrypting tech.

Encryption can be simple, like secret-key, or incredibly complex, like the Advanced Encryption Standard (AES), depending on the algorithm and the length of the key. The longer the key, the more protection, but also the more processing power required to handle the encrypting and decrypting process.

A few types of encryption to know include:

  • Secret-key algorithms: Also known as symmetric algorithms, or private-key, this algorithm uses the same key for encryption and decryption. This is a touch more vulnerable because anyone who gets a hold of that one key can read anything you encrypt. Also, passing that secret key over internet or network connections makes it more vulnerable to theft.
  • Public-key algorithms: These are also known as asymmetric algorithms. With public-key encryption, there are two different, related encryption keys—one for encryption, and one for decryption. The public key is how the information is sent to you, and the private key decodes it (much like having a secure lock box on your front porch that a delivery person can put a package in, then only you can access that package with your private key). The benefit here is the key isn’t subject to being sent over insecure networks, but it does require more computer processing power so it’s a bit slower.
  • Block ciphers: Like the Triple Data Encryption Standard (DES), or 3DES, these encrypt data a block at a time. Triple DES uses three keys and is a pretty great encryption option for financial institutions that need to protect sensitive information.
  • Stream ciphers: A symmetric algorithm, it uses a keystream, a series of randomized numbers, to encrypt plaintext one character at a time. Rabbit, W7, and RC4 are popular stream ciphers.
  • Elliptic curve cryptography: A form of public-key encryption, it can be practically unbreakable for normal computers, or “hard.” This is security industry speak for technology that’s not completely unbreakable, but is generally accepted to be up to best standards.
  • Blockchain cryptography: Blockchain technology is essentially a type of distributed database, best known as the basis for Bitcoin, that uses cryptography to safely store data about financial transactions. Blockchain cryptography is a form of “cryptocurrency,” using public-key encryption, and it’s valuable in its ability to provide direct, trustworthy and fraud-proof transactions between users on a peer-to-peer network. Because blockchain databases are distributed, they’re more resilient in the face of a DOS attack, so more companies are exploring this.

A few popular algorithms include:

  • Advanced Encryption Standard (AES): A block cipher, this is pretty much the gold standard, per the U.S. Government. It offers 128-, 192-, and 256-bit encryption, the last two reserved for instances that require extra-strength protection.
  • RSA: This asymmetric algorithm uses paired keys and is pretty standard for encrypting information sent over the internet, although it’s been through some issues of getting broken, which have then been resolved.
  • IDEA (International Data Encryption Algorithm): This block cipher with a 128-bit key has a great track record for not being broken.
  • Signal Protocol: This open-source encryption protocol is used for asynchronous messaging, like email.
  • Blowfish and Twofish: Both of these block ciphers are free to use and popular among e-commerce platforms for protecting payment information. They were created by the same person and offer symmetric encryption with keys varying in bit length. Twofish is the successor and offers longer encryption keys.
  • Ring Learning With Errors or Ring-LWE: This protocol ramps up elliptic curves by adding in a new type of encryption that might be unbreakable by quantum computers.

What is key management and why is it important?

Key management is another important aspect of encryption. Keys are how all of that encrypted data becomes readable, so how you handle them is just as sensitive as the data itself.

Many businesses worry about this aspect of encryption—after all, if you lose an encryption key, you lose access to your data, too. That’s why key management dictates how keys are stored (and shared) so prying eyes can’t get a hold of them, making your entire encryption schema moot.

  • Diffie-Hellman key exchange: This secure way for people to create a key allows them to share secure information. This method is also touted as “perfect forward secrecy,” meaning that theoretically, at no point in the future can messages get encrypted with a Diffie-Hellman key be decrypted.
  • Double Ratchet algorithm: Based on the above, the Double Ratchet algorithm is a key management algorithm used in end-to-end encryption of instant messaging, like the Signal messaging app.

This article just scratches the surface of the art and science of encryption, but hopefully, it gives you enough basic understanding of this important security technology. If you’re considering enlisting the help of a data security expert, you’re in luck: there are plenty of IT services and IT security freelancers (as well as cyber security consultants) on Upwork with expertise in encryption who are able to consult with you on an encryption strategy that’s best for you and your data.

View less
Schedule a call