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Rating is 4.7 out of 5.
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based on 315 client reviews
  • $34 hourly
    I work full time at a large security consultancy. I can work part time on any security/development projects. Fast learner and many different skill sets gained over the past few years.
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    JavaScript
    C#
    Java
    Application Security
    Ethical Hacking
    Penetration Testing
    C
    Python
    PHP
    Network Security
    Kali Linux
    HTML
    Security Engineering
    SQL
    Web App Penetration Testing
    Node.js
  • $75 hourly
    ✅ Top Rated Plus Expert ✅ 3000+ Hours ✅ Professional Penetration Tester Security researcher acknowledged by U.S Department of Defense (among other notable companies like AT&T, Semrush, Smule etc) for disclosing a number of vulnerabilities on DoDs systems via Hackerone bug bounty platform. For deliverables, professional reports are created,that will outline every vulnerability found, proofs-of-concept, and solutions on how to fix the discovered vulnerabilities. Each report not only meets but exceeds requirements for compliance auditors. Core competency is performing black and gray box testing on live web applications/networks or lab environments. Familiar with all common attack vectors and mitigation techniques, as well as finding unknown to public exploits known as 0days in web applications. Even though most of the work is confidential sample vulnerability report can be provided. Service Description 1)Web Application Penetration Testing based on OWASP TOP 10 2)Network Penetration Testing 3)Security Hardening Pentesting tools: BurpSuite Professional, OpenVAS, Nmap, Metasploit, Mimikatz, Impacket python framework
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    Web Application Security
    JavaScript
    Reverse Engineering
    Black Box Testing
    Ethical Hacking
    Web App Penetration Testing
    Network Penetration Testing
    Internet Security
    Security Testing
    Network Security
    Penetration Testing
    Vulnerability Assessment
  • $42 hourly
    I conduct ✔️Penetration Testing and ✔️Vulnerability Assessment services I am a Certified CyberSecurity Professional with 4+ years of experience in Pentest of External/Internal Network Infrastructure, Web applications, and Mobile (Android & IOS) applications. I also hold Industry's renowned Certifications, aimed for Experienced Penetration testers like OSCP & CREST Certification. ============== Am I the Best Fit for your Job? ============ If you are a small or medium-sized business that operates online and handles sensitive data, I can provide you with expert Penetration Testing and Vulnerability Assessments to ensure the security of your systems and networks. My services can help you Comply with regulations and industry standards like PCI-DSS, IOS 27001, GDPR, and HIPAA, giving you peace of mind and protecting your reputation. ============== Why Me? ============ My Unique Pentest Methodology includes: ✅Focused and Comprehensive Manual Penetration Testing based on OWASP Top 10 and PTES. ✅A Detailed and Easy-to-Understand Pentest Report about the Findings, along with their Impact and Remediation Methods. ✅ Automated Testing via Paid Professional Tools (Only if you Authorize me). ✅ Conducting Pentest in a Safe and Controlled Environment. ✅ Free Re-Testing to confirm Fix applied correctly ============== Certifications I Owned ============ • CREST CRT - CREST Registered Penetration Tester A practical assessment exam where the candidate is expected to find known vulnerabilities across common network, application and other technologies. Many regulatory bodies in United Kingdom(UK) and Australia require the use of CREST certified provider for penetration testing. • OSCP - Offensive Security Certified Professional OSCP is a well-respected certification and a lengthy 24 hour exam for those that aspire to become senior-level penetration testers. It trains not only the skills, but also the mindset required to be a successful penetration tester • CEH - Certified Ethical Hacker The CEH provides an in-depth understanding of ethical hacking phases, various attack vectors, and preventative countermeasures.
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    WordPress Security
    Virus Removal
    GDPR Compliance Review
    WordPress Malware Removal
    PCI DSS
    ISO 27001
    Website Security
    Web Application Security
    OWASP
    Web App Penetration Testing
    Network Penetration Testing
    Network Security
    Nessus
    Penetration Testing
  • $30 hourly
    🔢 As a seasoned Penetration Tester, I have a proven track record of conducting and leading successful security audits, web application penetration tests, and red team engagements for a diverse range of clients. My experience ranges from working with multinational corporations with large-scale infrastructures to smaller companies seeking enhanced security measures for competitive advantage. As a security engineer, my day-to-day responsibilities revolve around leveraging my expertise in penetration testing, cyber security, and vulnerability assessment to identify and mitigate potential vulnerabilities. Through these experiences, I have comprehensively understood the prevailing technology stacks employed worldwide, allowing me to discern their security weaknesses with precision. 🚫No hacking service - I do not provide any hacking services, and I will not engage in any activities that involve gaining unauthorized access to any accounts, systems, or social media platforms. Requests for such services will be declined. Working with me, you will: ★ Customized approach: I understand that every client's needs are unique, and I tailor my approach to meet your specific requirements. This ensures that you get the most comprehensive and effective security testing possible. ★ Timely delivery: I understand that time is of the essence when it comes to security testing, and I always deliver my reports on time, without compromising on quality. ★ Complete manual testing for your application and immediate notification if any high-impact issues are found. ★ Unlimited retesting for the fixed issues and unlimited revisions ★ Able to find critical bug classes that are often missed by automated pentests. 🔢 My stats are: ✅ Top-rated in information security and IT compliance categories ✅ Saved tens of thousands of dollars for clients by identifying critical vulnerabilities ✅ Ranked in the Top 50 at multiple bug bounty programs ✅ Supporting all time zones ✅ Long-term engagements ✅ Professional certifications (OSCP, CREST CPSA, OSEP, OSWP) Sound like a fit? 🟢 Press '...' button and then ‘Send Message’ button in the top right-hand corner Penetration Testing and Vulnerability Assessment Tools: Manual Testing: Burpsuite Professional, Nuclei, Ffuf, Nmap, Postman (API testing), Metasploit Framework, SQLmap, OWASP ZAP Automated Testing: Acunetix, Nessus, Netsparker, etc. Penetration testing service: 1. Penetration Testing Engagement: thorough manual and automated testing of all functionalities, including internal penetration tests and network infrastructure testing. Professional enterprise-grade software is used, such as BurpSuite Professional, Acunetix, and Nessus. 2. Professional Report and Statistics: A detailed report explaining the exploitation and discovery method of each vulnerability discovered, including proof-of-concept screenshots, full requests and responses, CVSS v3.0 standardized risk score, and impact. 3. Remediation Advice and Guidance: Remediation advice was provided for all security issues discovered, including guidance on how to fix the issues and warnings associated with the impact and risk of these vulnerabilities. 4. Asset Discovery: Active and passive methods are used to assess the digital footprint on the internet, including subdomain enumeration and service/port discovery. 5. Free Retest: Retest all vulnerabilities present in the report included in the price to ensure implemented security controls and/or fixes are working as intended. 6. OSINT Reconnaissance: gathering all valuable data about the company available on the internet, including any breached email addresses and related passwords available in cleartext on the internet. 7. Briefing and debriefing: Calls or meetings are available to discuss the scope of work, the focus of the penetration testing engagement, including all subdomains, black-box or white-box engagement, account requirements, preferred hours for load testing, and any other guidance required. Calls or meetings are available after the penetration test is completed to discuss the results of the engagement, the main issues and concerns regarding the security of the company, and any further clarification regarding any vulnerability and the associated impact or risk. ✅ The deliverable will be a professional penetration testing and vulnerability assessment report, which includes: ► Executive Summary ► Assessment Methodology ► Types of Tests ► Risk Level Classifications ► Result Summary ► Table of Findings ► Detailed Findings Each finding listed within the report will contain a CVSS score, issue description, proof of concept, remediation, and reference sections. ► Retest for issues (The vulnerabilities will be retested after they're fixed; multiple retests can be done to ensure the issues are remediated.) My Expertise: ★ Web Application Security Testing ★ API security testing ★ Penetration Testing ★ Internal Active Directory and External Network Pentest ★ Vulnerability Assessment.
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    Risk Assessment
    OWASP
    Network Penetration Testing
    Black Box Testing
    Web Application Security
    Website Security
    Web App Penetration Testing
    Application Security
    System Security
    Vulnerability Assessment
    Security Testing
    Security Assessment & Testing
    Network Security
    Penetration Testing
    Information Security
  • $60 hourly
    Hi, my name is Martin and I've been a principal penetration tester since 2011. Over the years, I've worked on a range of projects across Europe, East Asia, the Middle East, and the UK, serving clients from start-ups to global high street names. My focus is on providing a wide range of penetration testing services, including infrastructure, web and mobile applications, APIs, and cloud security assessments. One of the things that sets me apart from other penetration testers is my approach to the work. I've spent years mastering my craft, staying up-to-date with the latest technologies and techniques, and honing my skills. When I take on a project, I bring all of this knowledge and experience to bear, quickly identifying and exploiting vulnerabilities to provide my clients with the information they need to improve their security posture. In addition to my technical expertise, I'm also an excellent communicator. I understand that many of my clients are not technical experts themselves, so I'm always happy to explain complex technical concepts in simple, easy-to-understand language. I work closely with my clients to understand their needs and provide tailored solutions that meet their specific requirements. When it comes to deliverables, I take great pride in producing detailed reports and other materials that provide clear, concise information about the results of my testing. I know that my clients rely on this information to make important decisions about their security, so I always ensure that my reports are accurate, thorough, and actionable. Overall, I'm proud of the work I do as a principal penetration tester, and I'm committed to helping my clients stay safe and secure in an increasingly complex digital landscape. If you need infrastructure testing, web and mobile application testing, or cloud security assessments, please don't hesitate to get in touch – I'd be happy to discuss how I can help. Experience and expertise within the following disciplines: • Web Application Penetration Testing • Mobile Applications Penetration Testing • API Penetration Testing (REST, SOAP, GraphQL) • Thick Client Application Penetration Testing • External Infrastructure Penetration Testing • Internal Infrastructure Penetration Testing • Server Build Reviews • Workstation Build Reviews • Mobile Device and MDM Testing • Network Device Security Reviews • IoT Security • Embedded Hardware • Simulated Phishing • Wireless Assessments • Red Team Assessments • AWS Configuration Reviews • Azure Configuration Reviews • Office365 Configuration Reviews
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    Web App Penetration Testing
    Website Security
    Ethical Hacking
    Certified Information Systems Security Professional
    WordPress
    Security Assessment & Testing
    Cloud Security
    Security Testing
    Vulnerability Assessment
    Web Application Security
    Security Analysis
    Penetration Testing
    Security Infrastructure
    Information Security
    Cybersecurity Management
  • $39 hourly
    ✅ 5+ years Experience ✅ 150+ Hours ✅ Professional Penetration Tester ✅ Rising Talent ⭐⭐⭐⭐⭐ Rubel was great! He was responsive, professional, and good at communicating. He delivered and helped us after delivering as well. I would definitely recommend him. ⭐⭐⭐⭐⭐ I'm a Security Specialist and a penetration tester I can test the bellow vulnerability and give you a report about your current situation. I am also a malware remover and help people properly by fixing and securing many malware infected websites and I can restore your hacked social media accounts. Expert In ✔️Web Application And Network Penetration Testing with the recommendation for remediation(wordpress website, e-commerce website, educational website etc) ✔️ Complete security assessment of Application with the recommendation for remediation ✔️ Cloud (AWS) infrastructure complete vulnerability assessment, security & penetration testing with the recommendation for remediation ✔️ Static and Dynamic code analysis (SAST & DAST) with the recommendation for remediation ✔️ API Security ✔️ Reconnaissance - Open Source Intelligence (OSINT) using Datasploit, Spiderfoot, foca pro, Buscador, Maltego, Recon-ng, Shodan, theHarvester etc. ✔️ Malware, Phishing, Breach, data leakage detection ✔️ Firewall audit and configure ✔️ Android and iOS application vulnerability detection and security testing Pentesting tools: BurpSuite Professional, OpenVAS, Nmap, Metasploit, Mimikatz, Impacket python framework 💯 If you have any question. Feel free to leave a message Thanks #hack #penetrationtesting #pentest #malware #malwareremove #security #vulnerability #osint #investigator #informationsecurity
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    WordPress Malware Removal
    Penetration Testing
    Website Security
    Web App Penetration Testing
    Ethical Hacking
    Network Penetration Testing
    Security Assessment & Testing
    Cybersecurity Management
    Vulnerability Assessment
    Information Security
    Open Source
    Virus Removal
    Internet Security
    Malware Removal
  • $66 hourly
    As a dedicated Computer Engineering student, I've invested years in mastering ethical hacking, web app penetration testing, and conducting OSINT investigations, starting my journey in 2018. Through practical application and thorough testing of these skills, I've evolved into a versatile professional, excelling as a hacker, proficient web app penetration tester, adept vulnerability assessment specialist, and detail-oriented OSINT investigator. My track record speaks for itself, boasting a pristine reputation and a flawless 100% success rate across all Jobs FAQ Q: Am I certified 🤔? A: yes,I am certified web app Penetration tester with eWPTv2 from INE Q: What tools do i use in Penetration testing? A: That depends on the job, so sometimes i use manual scans and exploits and sometimes i use tools like (Nmap, BurpSuite, Metasploit, Nessus, SQLmap, OpenVAS, WPScan, Nikto, TestSSL)
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    Linux System Administration
    Internet Security
    Website Security
    Web App Penetration Testing
    Aircrack-ng
    Article Writing
    Black Box Testing
    Cybersecurity Monitoring
    Ethical Hacking
    Web Testing
    Digital Forensics
    Cybersecurity Management
    System Security
    Vulnerability Assessment
    Penetration Testing
  • $145 hourly
    In the B2B space, you need Security, Privacy, and Compliance to sell to Enterprises! Unlock business opportunities and growth (💲millions) by working with me, the 🥇 Upwork virtual CISO, Security, Privacy, and Compliance consultant (1M+ earnings, 20+ years of enterprise experience)! CEO selling to Morgan Stanley: 🥂"The certification is enabling us to strike a deal with a Fortune 100 client." CEO selling to Philips: 🍾 "We have achieved the ISO 27001:2022 certification in record time." CEO selling to Pepsi:🎉 "Attila supported the growth of our business into Fortune 100 accounts." COO selling to Fannie Mae:👏 "We achieved a successful SOC 2 Type II attestation with no exception." 💭Securing your business, passing security assessments by clients or prospects, and achieving a security certification 𝙨𝙝𝙤𝙪𝙡𝙙 𝙣𝙤𝙩 𝙗𝙚 𝙖 𝙘𝙪𝙢𝙗𝙚𝙧𝙨𝙤𝙢𝙚 𝙖𝙣𝙙 𝙥𝙖𝙞𝙣𝙛𝙪𝙡 𝙚𝙭𝙚𝙧𝙘𝙞𝙨𝙚. 👌 All you need to do is ping me on Upwork, bring your problem, and after a 15-minute scoping call, I will provide you with a detailed Scope of Work. Specialized in business-to-business clients, providing 💸money-back guaranteed💸 ISO 27001, SOC 2, GDPR, HIPAA, PCI-DSS, CMMC, and FedRAMP projects and affordable virtual CISO (vCISO) services. ----> If you don’t get certified, all my fees will be refunded! <---- We are a good match if you are: 😢Busy developing your product or business and don’t have time and resources to be consumed by compliance efforts and endless meetings, halting your production for months 🤔Already purchased a DIY compliance tool (Drata, Vanta, Thoropass/HeyLaika, Sprinto, Tugboat Logic, SecureFrame, Strike Graph, Audit Board, Trust Cloud, and so on) but 𝙙𝙤𝙣’𝙩 𝙠𝙣𝙤𝙬 𝙩𝙝𝙚 𝙣𝙚𝙭𝙩 𝙨𝙩𝙚𝙥 𝙤𝙧 𝙙𝙤𝙣’𝙩 𝙝𝙖𝙫𝙚 𝙩𝙞𝙢𝙚. 😢You quickly need quick security or privacy awareness training, cloud security posture assessment (AWS, GCP, Azure), endpoint security (MS 365 - Intune, Jumpcloud, Google Workspace), or penetration testing? 💪Want to decrease your sale cycle by being compliant and having all the answers for the security and privacy questionnaires. 💪Facing challenges with the security and privacy implications of AI products? 💪Want continuous access to a certified, creditable security, compliance, and privacy professional to manage your security framework? -> Continous virtual CISO (vCISO / fractional CISO) service with affordable weekly payments! 😟Need world-class, battle-proof security and privacy policies and you need it quickly? The kind of ones that have passed audits by KMPG, Deloitte, E&Y, Pepsi, Uber, Verizon, Philips, Facebook, and many others. 💪You want problems to be solved, by the BEST Working with me you will: ● Stop struggling with compliance requirements, security questionnaires, or useless document templates -> We will take care of professional policies, provide the right answers, and advise on how to implement security. ● Make the first steps on the journey to selling Enterprises ● Receive turnkey, Enterprise-grade security operation framework ensuring long-term effectiveness ● Work with an experienced senior team (architects, pen testers, endpoint engineers, developers, auditors, consultants) that regularly helps clients score accounts like GOOGLE, MICROSOFT, BOSE, IKEA, PUMA, PFIZER, MORGAN STANLEY, CITIBANK, DISNEY, MAYO CLINICS, VERIZON, PHILIPS, SIEMENS. My stats are: ✅Saved tens of thousands $$$$$ for clients, advising them on the right security tools, solutions, and approach ✅#1 in Information Security and IT compliance categories (1M+ earned) ✅Supporting all time zones ✅Long-term engagements ✅Professional certifications (CISA, CISSP, ISO 27001 IA) About my Security Consultant team: QUALITY over QUANTITY is our ethos. Excellent quality, on time, always. We only take on projects when we can deliver outstanding results. The team consists of (only) senior experts in AWS, Azure, GCP DevOps, SecOps, Penetration testing, Google Workspace, MS 365 Intune, AppSec, auditing, and compliance. Professional Integrity: We are strongly committed to moral and ethical principles and values, such as honesty, honor, responsibility, trustworthiness, and objectivity. What we look for in a new client: ● Open-minded, relaxed attitude ● Values integrity & long-term relationships ● Willing to accept advice and guidance (security is a complex niche) Click on the green invite button at the top right corner to invite or message me. 📣 Security questionnaire and vendor assessment tools: CyberGRX, Panorays, KY3P (S&P, PWC), RSM, CyberVadis, SIG, SIG Lite, CAIQ, VAS, HECVAT, OneTrust, Graphite Connect, Centrl, Whistic, Security/Compliance frameworks: ISO 27001, SOC 2, FedRAMP, NIST 800-53, NIST 800-171, NIST CSF, TISAX, HIPAA, HITRUST CSF, GDPR, NERC, ISO 27017, ISO 27018, CMMC, CMMI, TX-RAMP, StateRAMP, AZ-RAMP, NY DFS 23 / NYCRR Part 500, PCI-DSS, FFIEC, C5, ENISA, Center of Information Security (CIS) CSAT, IRAP, PIPEDA, ISO 42001
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    ISO 27001
    SOC 2
    AI Security
    HIPAA
    SOC 2 Report
    Risk Management
    Cloud Security
    Information Security Audit
    Certified Information Systems Security Professional
    Governance, Risk Management & Compliance
    Information Security
    Information Security Consultation
    IT Compliance Audit
    Cybersecurity Management
    Security Policies & Procedures Documentation
  • $20 hourly
    Need help to recover your HACKED & DISABLED social media accounts in the least possible time? You are at right place if you have lost access to your personal or business social media account (s). Lost credentials or your account got hacked. Your account was disabled by a mistake. You want to remove old accounts or remove your content from search engines or social media. Or if have any other Instagram and Facebook related issue. You might have tried available support options and scrolled through forums but could not find help because: I have been providing virtual assistance with the related issues for a long time and enjoying my successful journey. I have proudly offered my clients to pay only after the successful results and resolved dozens of cases. You will find the support and solution for almost every kind of issue related to the Instagram and Facebook and other social media platforms with full compliance to ethics and respective platform's terms and service. I would love to answer your queries for free of cost and will suggest a way forward that would help you to accomplish your goals. Please send me a message with issue details and screenshots (if feasible). Invite me for the interview if your: Facebook account is disabled. Instagram account is disabled. Facebook account is restricted. Instagram account is restricted. Facebook account is hacked. Instagram account is hacked. Facebook account is locked. Instagram account is locked. Facebook account is compromised. Instagram account is compromised. Facebook account is lost. Instagram account is lost. Or if you are seeking help for: Recover hacked Instagram account Facebook recovery Instagram restoration Facebook restoration Instagram security Facebook security Instagram verification Facebook verification Instagram & Facebook Integration Instagram & Facebook Marketing Recovery of account in case of lost credentials Recovery from underlying technical issues, bugs and glitches Snapchat issues LinkedIn issues TikTok issues Social media content removal Facebook Instagram Integration Facebook and Instagram verification problem Facebook content removal Instagram content removal Instagram fake followers removal Instagram fake accounts removal Facebook fake accounts removal ''DON'T FORGET TO READ THE REVIEWS ON MY PROFILE'' Disclaimer: Write me about the issues related to your ''own'' social media account (s) or only if you are an authorized representative. Avoid making requests that are not compliant with Upwork and Instagram's terms of service. You will get ethical virtual assistance to get your problem resolved through this channel. Thank you for your precious attention. Looking forward to your invites. Anxiously waiting for assisting you better. :)
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    Social Media Marketing
    Social Media Account Setup
    Instagram API
    Internet Security
    Technical Support
    Information Security
    Network Security
    Vulnerability Assessment
    Ethical Hacking
    Troubleshooting
    Data Recovery
    Cybersecurity Management
    Social Media Management
    Instagram
    Facebook
  • $70 hourly
    Cybersecurity Expert working in the industry since 2008. Delivers security audits and security consulting services. Specializes in following areas: 1. Conducting Web applications and Web services penetration tests, 2. Auditing and designing Information Security Management Systems, 3 Conducting ISO 27001 gap assessments and internal audits, 4. Conducting Threat Modeling and proposing architectural mitigation strategies for cloud-based and on-premise IT infrastructures, 5. Conducts Adversary Simulations and Red Team Operations to verify prevention, detection and response capabilities of mature cybersecurity programs, 6. Conducting GDPR related data security and privacy consulting. Mariusz possesses following security industry certifications: 1. CISSP - Certified Information Systems Security Professional: since 2014 2. OSCP - Offensive Security Certified Professional: since 2016 3. GXPN - GIAC Exploit Researcher and Advanced Penetration Tester: since 2017 4. Certified ISO 27001 Lead Auditor: since 2024 During the years of working with clients worldwide Mariusz conducted over 100 security assessments, penetration tests and analysis projects.
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    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
  • $30 hourly
    Ex Top Rated freelancer (Information security category) on Upwork Penetration Tester Consultant Certified Ethical Hacker Ex-Chapter Leader @ OWASP Bug Bounty Hunter Certified Vulnerability Assessor (CVA) - FBI Cyber Security Certification Requirement, Tier 1 Fortinet - NSE 1 Network Security Associate Certified Network Security Specialist (CNSS) - Trained. Major expertise are web and mobile applications penetration testing. I have 8+ years of experience in web application penetration testing, mobile application penetration testing and network vulnerability assessments Most of my clients are SaaS, Startups, and multi-national companies. Acknowledged by Nokia, Opera, Microsoft, Apple and many other big names for reporting security vulnerabilities and participating in bug bounties. Expertise include :- Web application penetration testing. Information Security Consultancy. Android and iOS applications penetration testing. Malware analysis and removal. Security consultancy. Code revision from security point of view. Vulnerability Assessment of Network Devices/Databases/Web Server/Application Server. Documentations related to information security (NIST, ISO 27001 etc) *Not available for anything illegal or unethical.
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    Web App Penetration Testing
    WordPress
    Security Analysis
    Information Security Audit
    IT Compliance Audit
    Ethical Hacking
    WordPress Malware Removal
    Information Security
    Network Security
    Penetration Testing
  • $80 hourly
    ✅ Penetration Tester and Cyber security consultant acknowledged by leading companies in the tech field for reporting several high, and critical vulnerabilities in their systems and websites. After I go through multiple pentestinig techniques manually and automatically, at the end of the engagement, professional reports are provided, that will outline every vulnerability found, proofs-of-concept, and solutions on how to fix the discovered vulnerabilities. Let's get in touch and get your website and system secured 🛡️ 🏆 Cyber security consultation 🏆 Cyber security training 🏆 Network Penetration Testing 🏆 Active Directory Penetration Testing 🏆 Web penetration testing 🏆 Vulnerabilities Assessment 🏆 Cyber security training labs Development 🏆 CTF Labs development 🏆 Synack Red Teamer 🏆 Acknowledged by tech lead companies, Yahoo, Nokia, ZTE, Swisscom, Synology, ElearnSecurity, Payoneer, Sophos, Xiaomi. 🏆 I was number 16 on Turkey and Egypt on HackTheBox. 🏆 Work on Weekends 🏆 5 Years Experience
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Digital Forensics
    Metasploit
    Penetration Testing
    Ethical Hacking
    Kali Linux
    Security Testing
    Vulnerability Assessment
    Nessus
    Web App Penetration Testing
    Network Penetration Testing
    Network Security
    Docker
    OWASP
    Web Application Security
    Linux
  • $50 hourly
    ✅ Top Rated Plus Pentester ✅ 5+ Years Pentesting ✅ 70+ 5-star Reviews ✅Supporting All Time Zones ✅ Unlimited Revisions ✅ Top 1% Talent Are you looking for a professional ethical hacker to conduct a security audit or penetration test for your company? Look no further! With years of experience and a deep understanding of modern technology stacks and their vulnerabilities, I am well-equipped to provide high-quality penetration testing services to a wide range of clients. 🎯 Why Hire Me for Your Digital Security Needs? 🔒 Extensive Experience I have conducted and led hundreds of security audits, penetration tests, and red team engagements for a variety of companies, giving me a wealth of hands-on experience in the field. 🔍 Comprehensive Cybersecurity Services My services include comprehensive penetration testing, detailed reporting, expert remediation advice, asset discovery and mapping, follow-up checkups, OSINT reconnaissance, consultations and briefings, and post-engagement debriefings. 🔑 Customized Security Solutions I provide personalized, tailored services to each of my clients, taking the time to understand their unique needs and requirements. 🛡️ Professionalism and Expertise I am an ethical hacker and have a deep understanding of modern technology stacks and their vulnerabilities. I use professional software and tools, as well as personal scripts and techniques, to ensure the accuracy and thoroughness of my work. 📞 Clear communication I am available for meetings and calls to discuss the scope of work, the focus of the engagement, and any other questions or concerns you may have. I also provide post-engagement debriefings to ensure that you understand the results of the engagement and any potential security risks. Ready to secure your business? Let's fortify your cybersecurity defenses together. Contact me today to schedule a consultation and discover how my services can safeguard your business from evolving cyber threats. Looking forward to working with you🙂
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Network Security
    Web App Penetration Testing
    Security Infrastructure
    Penetration Testing
    Web Testing
    Website Security
    Application Security
    Network Penetration Testing
    Information Security
    Ethical Hacking
    Security Testing
    Security Assessment & Testing
    Security Analysis
    Database Security
    Web Application Security
  • $20 hourly
    Qualified and Certified Information Systems Security expert with a solid academic background and a comprehensive skill-set underpinned by enthusiasm and diligence in delivery of tasks. I hold a bachelor's of science in Computer science from University of Nairobi, Certified Ethical Hacker from E Council University, Huawei Networks Security Associate, Palo Alto Networks Cybersecurity certificate, proactive computer security from University of Colorado Systems & managing successful projects with PRINCE2. I have gained 3 years of experience in vulnerability management, SOC analysis, IT security policy and procedures, penetration testing, network infrastructure security and ahead of latest cybersecurity techniques and attacks. I’m versatile team player willing to quickly learn and adapt as well as support other team members.
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    Application Security
    Web App Penetration Testing
    Incident Response Plan
    Computer Network
    Network Security
    Network Engineering
    Firewall
    System Security
    Vulnerability Assessment
    Reverse Engineering
    Penetration Testing
    Information Security
  • $20 hourly
    🏅TOP RATED🏅 🔰 Feedback from clients: "I hired Abir for a 3rd time for further security issues. Abir is great to work with. Very knowledgeable with all security measures and fixes, quick to communicate, and always completes jobs successfully. I will continue to hire Abir for future security work." "Abir is very knowledgeable in his work and is a great communicator. He assisted me on every step." "Abir fulfilled all our needs in IT, we are going to hire him for the future, we recommend his professionalism, skills, and availability. We are very happy with his services. Thank you Abir for your help !" "Abir is amazing! Our site was attacked by malware and we panicked but we soon published a job on Upwork and found Abir who offered to help us out. It was already past midnight his time but he spent almost 3 hours until everything was sorted out, and he was very professional and quick in his work. He also gave us advice on how to improve our website's security. Highly recommended!" 🔰 My services: ✅ Website/Web Application Penetration Testing ✅ WordPress Malware Removal ✅ WordPress Website Customizations (I can customize anything) ✅ WordPress Critical Error Fixations. 🔰 About me: I help many small, medium, and large (organization) level Website/Web Applications to secure their system from hackers. I love to support large organizational-level Web Applications to grow their business without any worries about being hacked. I provide a high-quality penetration testing service to prevent malicious parties from gaining unauthorized access. I also provide WordPress malware removal services. I have 6 years of experience in WordPress malware removal My past cyber security career focused on finding common and rare vulnerabilities in Websites/Web Applications. I've been awarded a cyber security expert certificate from the #1 hacker community of Bangladesh(Cyber71). As a penetration tester and a freelancer, I've performed comprehensive security audits at a large organizational level Web Applications. And gained their trust for their private future projects. Please contact me on the Upwork chatbox for future discussion. Always looking forward to new projects. 🔰 Why you should hire me? ✅ 24/7 Support ✅ Extremely Trusted ✅ Extremely Talented and experienced ✅ 100% Satisfaction ✅ 100% Genuine Quality Service.
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Python
    Core PHP
    Custom PHP
    WordPress Malware Removal
    Web App Penetration Testing
    Cybersecurity Management
    Penetration Testing
    Information Security
    Network Penetration Testing
    Vulnerability Assessment
    WordPress Bug Fix
    Website Security
    WordPress Customization
    Web Application Security
    WordPress Security
  • $39 hourly
    I am OSCP and CRTO Certified with 8 years of professional experience in different pentesting and red teaming trade crafts. Challenges make me work more efficiently. What is a better challenge than doing penetration testing in which knowledge and experience are the main factors to successfully finding a way inside Targets? - Manual testing approaches with real-impact vulnerabilities - Exposure to multinational companies and Swiss banks - Industry-renowned certifications (OSCP - CRTO - eWPTXv2 - CMSE - CPTE - CEI - CCNA) - "Find my way in" mentality therefore 80% of projects end up in successful breaches Key Skills for Pentesting Jobs ---------------------------------- Web Applications Pentesting Network Pentesting REST API/SOAP Pentesting Mobile Applications Pentesting Desktop Applications Pentesting Source Code Reviews Active Directory Assessment Key Skills for Offensive Jobs --------------------------------- Email Phishing (Maldoc or stats based) Social Engineering Assume Breach Scenarios MITRE ATT&CK framework Simulations Tactics, Techniques, and Procedures Testing against patched Infra Malware Development
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Black Box Testing
    Information Security
    Vulnerability Assessment
    System Security
    Application Security
    Network Security
    Information Security Consultation
    Cloud Security
    Penetration Testing
    Web App Penetration Testing
    Network Penetration Testing
    Web Application Security
    Ethical Hacking
    Security Testing
    Mobile App Testing
  • $30 hourly
    Red Team member, performing penetretion tests in all company's assets, vulenrability management and security analyst, Wordpress security expert, site cleanup and hardening. 10 years of experience with Linux servers in the hosting environment, with emphasis on web security, identification and malware removal(site cleanup) , investigation of how the hacking occurred, identify failures in web systems, pentest in web systems and solve other problems related to the hosting environment.
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Malware Website
    WordPress
    Web Host Manager
    Python
    cPanel
    MySQL
    Network Penetration Testing
    Website Security
    Email Security
    Web App Penetration Testing
    Linux
    Kali Linux
    System Security
    Malware Removal
    Security Testing
  • $60 hourly
    Are you concerned about cyber threats, unsure of your Web Application's security and sophisticated vulnerabilities. Do not worry I'm here to help you with my comprehensive Certified Penetration Testing Specialist knowledge and 4 years of experience in Vulnerability Assessments Penetration Testing, Having completed over 30 projects with an 85% vulnerability discovery rate, I excel at finding and mitigating vulnerabilities. My mission is to offer you peace of mind by ensuring your business operates securely and efficiently. From penetration testing, Vulnerability Assessments to advanced security assessments, my comprehensive services are designed to mitigate risks and improve your overall security Process: We'll kick off with a free consultation to understand your specific needs and goals.Once the proposal is approved, we’ll have a detailed kickoff meeting to align on objectives and expectations.: I’ll conduct a thorough security assessment, identifying vulnerabilities and providing a comprehensive report with actionable insights. Service 🔒 Penetration Testing 🌐 API Security Assessment 📄 CMS Security Testing ☁️ Cloud Penetration Testing 🌐 Web Application Penetration Testing 📱 Mobile Application Penetration Testing 🏢 Enterprise Network Penetration Testing 🤖 Social Engineering Assessments 📶 Wireless Network Security Testing 🌐 IoT Security Assessment 💼 Thick Client Application Testing 🚩 Red Team Engagements 🚀 Security Awareness Training 🛠️ Customized Security Solutions
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    ISO 27001
    Application Security
    Vulnerability Assessment
    Metasploit
    Kali Linux
    Nessus
    OWASP
    Internet Security
    System Security
    Ethical Hacking
    Network Penetration Testing
    Network Security
    Web Application Security
    Web App Penetration Testing
    Penetration Testing
  • $25 hourly
    ⭐️Professional Penetration Tester 🔐Certified Ethical Hacker 💎Malware Removal Expert 🔎Are you looking for a highly skilled penetration tester to secure your Web applications, Mobile apps, APIs, and Networks, Systems from hackers? No worries! I am here. I am a Professional Penetration Tester and Ethical Hacker with 7+ Years of experience in Cybersecurity, Ethical Hacking and Penetration Testing. I have extensive experience in all types of pen-test, including black box, white box, and grey box. In my deliverables, you'll receive a professional penetration testing report detailing each vulnerability found, proofs-of-concept, and remediation to fix them😊. Don't leave it until it's too late. Secure your systems now to prevent hackers from misuse of your vulnerabilities. 🌟 My Penetration testing services, including: ✅ Web Application Penetration testing ✅ Mobile app (Android & IOS) penetration testing ✅ API Penetration Testing ✅ Network Penetration testing ✅ Cloud Penetration testing ✅ Ethical Hacking ✅ Vulnerability Assessment & Management ✅ Malware threats analysis ✅ Digital forensics investigation ✅ Vulnerability Assessment and Penetration Testing (VAPT) ✅ Pentest of any kind of SQL Injection, XSS, OWASP Top 10, 4000 other vulnerabilities ✅ Troubleshooting Server and Network issues 🌟 My Malware Removal services for WordPress and other CMS: ✅ WordPress Malware/Virus Removal and Security ✅ Recover Hacked WordPress website and Malware Removal ✅ WordPress Website Secure Migration ✅ Japanese or Pharma-Hacked SEO Spam Removal from Google Search ✅ Fix redirecting Fishing or spamming URLs ✅ Remove WordPress malware, malicious codes, backdoors, Shells, Viruses, Trojans and Backdoors. 🛠️ Expertise in Tools: Burpsuite Professional, Nessus Premium, Acunetix Pro, OWASP ZAP, Nmap, Postman, SQLMap, Metasploit, Netcat, Wireshark, Kali Linux, OpenVAS, Splunk, Mimikatz, Impacket python framework, and so on. Using these tools, I can extensively examine your applications, networks, and systems for vulnerabilities and provide thorough reports and suggestions for strengthening your security posture. Let me assist you in keeping your systems secure. 🌟 Why you choose me? ✅ Respect Deadlines: I always respect and honor timelines for my projects. Never take a lot of project at a time. This account is my lifetime asset so QUALITY FIRST! ✅ Client Reviews: I focus on providing value to all of my clients and earning their TRUST. ✅ Responsiveness: I am extremely responsive and keep all lines of communication readily open with my clients. ✅ Communication: I always maintain strong communications with my clients. ✅ Kindness: One of the main aspects of my life that I implement in every facet. Treating everyone with respect, understand all situations with empathy, and genuinely want to improve my client's situations. I am confident that you will be satisfied with the quality of work and value that you can expect from working with me. Thank you for taking the time to read my profile. 𝐈 𝐚𝐦 𝐣𝐮𝐬𝐭 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐰𝐚𝐲 ! Click the green “Send Message” ✉️ button in the top right-hand corner. Thank you GM Salman A Mehbub
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    OWASP
    System Administration
    Network Penetration Testing
    Web Application Security
    Ethical Hacking
    Website Security
    WordPress Malware Removal
    Web App Penetration Testing
    Cybersecurity Management
    Security Assessment & Testing
    Application Security
    Information Security
    Malware Removal
    Vulnerability Assessment
    Penetration Testing
  • $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 WebApp Pentesting
    App Development
    Internet Security
    Certified Information Systems Security Professional
    Security Analysis
    Wireless Security
    Java
    Information Security
    Network Security
    Penetration Testing
  • $40 hourly
    I'm an OSCP (Offensive Security Certified Professional), OSWE (Offensive Security Web Expert), CREST CRT, and CEH (Certified Ethical Hacker) certified penetration tester. I can conduct vulnerability assessments and penetration testing for your web applications, mobile applications, and cloud infrastructures. I can also audit the code of your PHP / Python / JS (NodeJS) applications and fix code-level vulnerabilities. My day to day work includes: -- Research on bleeding edge technologies -- PHP/Python/JavaScript development -- Code auditing -- Database management -- APIs development & integration -- AWS services (EC2, SES, SNS, SQS, Route53, S3, Lambda, API gateway) -- Penetration testing -- Data scraping -- and a lot more
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Network Security
    Security Testing
    Network Penetration Testing
    PHP
    JavaScript
    Laravel
    Penetration Testing
    Information Security
    Cloud Security
    Web App Penetration Testing
    Web Application Security
    Website Security
    Information Security Audit
    Linux System Administration
    Amazon Web Services
  • $75 hourly
    I am an IT Professional that works on widely scope expertise of multiple domains in IT such as Information Security and Ethical Hacking. I am able to provide you the following services : - Full Conduct Red-Teaming Real World Hacking Scenario - Penetration Testing Engagement - OWASP Top 10 Testing on your Web Application - Vulnerability Assessments, Analysis - Vulnerability Remediation Advice & Guidance - Web Application Security and Database Security Audits - OSINT Reconnaissance - Perimeter Device Configuration Audits [Routers & Firewalls] - Mitigation Security - Hardening IT Security Environment with Customized Firewall IDS/ IPS - SOC Implementation - Malware Analysis - Exploit Development (for Legal Purposes or Educational) - Forensics and Incident Handling - Cyber Crime Investigation - Receive a blueprint for conducting your own penetration test . - Explore a number of exploitation methods that can be used to gain full control over a target computer - Mobile Android or iOS Hack & explore countermeasures to each kind of attack - Threat Analysis, Risk Analysis and Risk Treatment
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Web Application Firewall
    Web App Penetration Testing
    System Administration
    WordPress
    Information Security
    Penetration Testing
    Ethical Hacking
    Vulnerability Assessment
    Network Security
    Linux System Administration
    Security Analysis
    Android App Development
    PHP
  • $200 hourly
    Penetration Tester. Interested in several fields of cybersecurity, and opened to different opportunities.
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Internet Security
    Security Analysis
    Web App Penetration Testing
    Network Penetration Testing
    Network Security
    Information Security
    Penetration Testing
  • $56 hourly
    I am a cybersecurity professional with over 7 years of experience, I am skilled in web and mobile application penetration testing, vulnerability assessments, and information security consulting. My work as a bug bounty hunter and penetration tester has earned me recognition from top companies such as Apple, Microsoft, Facebook, Government of Singapore and the US Department of Defense. I am also an active participant on the HackerOne and Bugcrowd platforms, consistently delivering high-quality results in the areas of web application security testing, Android application security testing, and vulnerability assessment. Whether you're looking for a comprehensive security review or targeted testing, I'm here to help keep your business safe and secure. In addition to testing services, I also offer information security consulting to help you navigate the ever-evolving landscape of cybersecurity threats.
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Security Management
    Web App Penetration Testing
    Security Analysis
    Security Engineering
    Website Security
    Information Security Audit
    Web Application Security
    Ethical Hacking
    Network Penetration Testing
    OWASP
    Vulnerability Assessment
    Information Security Consultation
    Penetration Testing
  • $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 WebApp Pentesting
    Malware Removal
    Information Security
    Vulnerability Assessment
    System Security
    Network Security
    Information Security Consultation
    Website Security
    Penetration Testing
    Network Penetration Testing
    Internet Security
    Ethical Hacking
    Security Testing
    Security Assessment & Testing
  • $35 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. Prompt responses to your needs. You can consider me as and internal staff of your company , always helping you to do the best in security. --------------------------------------------------------------------- Phishing simulation for your company needs ___________________________________________________________ Professional Load and Stress Testing if you are interested for your application __________________________________________________________
    vsuc_fltilesrefresh_TrophyIcon WebApp Pentesting
    Security Engineering
    Web Application Security
    Internet 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
  • $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 WebApp Pentesting
    Network Penetration Testing
    Security Analysis
    Security Infrastructure
    Information Security Audit
    Internet Security
    Financial Audit
    System Hardening
    Compliance
    Web Application Security
    IT Compliance Audit
    Security Engineering
    Security Policies & Procedures Documentation
    Application Security
    Information Security
    Network Security
    Firewall
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