Hazem Elsayed

Hazem Elsayed Email and Phone Number

Lead Penetration Tester @ HackerOne
Istanbul, Turkey
Hazem Elsayed's Location
Istanbul, Türkiye, Turkey
About Hazem Elsayed

I am an experienced Penetration Tester who specializes in identifying server and web front-end vulnerabilities, conducting security assessments, and performing audits. Leveraging my expertise in Android , IOS and game Penetration Testing, I have provided comprehensive security assessments and consulting services to a diverse range of organizations.With a track record of conducting proactive security testing for reputable bug bounty platforms such as HackerOne, Synack, and Zerocopter, I have earned a reputation for providing practical recommendations and conducting thorough security audits.In my current capacity as a full-time Penetration Tester at Cyrex, I utilize my skills and knowledge to bolster the security of their clients' networks and applications. My passion for ethical hacking and programming drives me to continually refine my expertise, ensuring that I stay up-to-date with the latest security trends and emerging threats.

Hazem Elsayed's Current Company Details
HackerOne

Hackerone

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Lead Penetration Tester
Istanbul, Turkey
Website:
hackerone.com
Employees:
6027
Hazem Elsayed Work Experience Details
  • Hackerone
    Lead Penetration Tester
    Hackerone
    Istanbul, Turkey
  • Cyrex
    Lead Offensive Security Engineer
    Cyrex Jan 2024 - Present
  • Cyrex
    Offensive Security Engineer
    Cyrex May 2022 - Jan 2024
    Dublin, County Dublin, Ireland
    As an Offensive Security Engineer at Cyrex, my role involves manually testing and scrutinizing networks, web-based applications, Android apps, games, and computer systems to identify vulnerabilities. I employ a thorough methodology that enables me to identify potential threats to the confidentiality, integrity, and availability of the targeted systems.After testing, I prepare detailed reports that document all my findings and provide recommendations for remediation. In addition, I… Show more As an Offensive Security Engineer at Cyrex, my role involves manually testing and scrutinizing networks, web-based applications, Android apps, games, and computer systems to identify vulnerabilities. I employ a thorough methodology that enables me to identify potential threats to the confidentiality, integrity, and availability of the targeted systems.After testing, I prepare detailed reports that document all my findings and provide recommendations for remediation. In addition, I collaborate with the IT teams and management to develop effective solutions to mitigate the identified risks.My responsibilities also include providing feedback and verification after the implementation of security fixes to ensure the efficacy of the solutions. As a diligent and detail-oriented Penetration Tester, I am committed to delivering high-quality services to protect our clients' systems and sensitive information. Show less
  • Hackerone
    Penetration Tester
    Hackerone Apr 2024 - Present
    As a seasoned penetration tester on HackerOne, I specialize in identifying and mitigating security vulnerabilities for a diverse range of clients. My expertise spans across web applications, mobile applications, and game technologies, ensuring robust protection against potential threats.
  • Hackerone
    Bug Bounty Hunter
    Hackerone Jun 2021 - Present
    Actively participating in both public and private bug bounty programs through responsible disclosure of security vulnerabilities in various web, mobile, and game technologies and applications for high-profile organizations. Some notable achievements include:• Over 500 security vulnerabilities responsibly disclosed and fixed.• Over 60 acknowledgments received from organizations such as PayPal, CompTIA, Rockstar, Spotify, Snapchat, Yahoo, BlackRock, HackerOne, and the NBA , etc.•… Show more Actively participating in both public and private bug bounty programs through responsible disclosure of security vulnerabilities in various web, mobile, and game technologies and applications for high-profile organizations. Some notable achievements include:• Over 500 security vulnerabilities responsibly disclosed and fixed.• Over 60 acknowledgments received from organizations such as PayPal, CompTIA, Rockstar, Spotify, Snapchat, Yahoo, BlackRock, HackerOne, and the NBA , etc.• Ranked 298th on the all-time leaderboard (as of June 2024). Show less
  • Synack Red Team
    Bug Bounty Hunter
    Synack Red Team Sep 2021 - Present
    In Sep , 2021 I was accepted as a member of the Synack Red Team, an invitation-only bug bounty platform with a 10% acceptance rate.
  • Nakitcoins
    Penetration Tester
    Nakitcoins Jun 2021 - May 2022
    Istanbul, Turkey
    During my tenure as an Information Technology and Cyber Security Consultant at NakitCoins, I leveraged my technology expertise to safeguard the organization's sensitive data from internal and external threats, including cybercrime and unauthorized use.My primary responsibilities included ensuring the organization's IT infrastructure was secure and up-to-date with the latest security protocols. Additionally, I collaborated with cross-functional teams to identify potential security risks… Show more During my tenure as an Information Technology and Cyber Security Consultant at NakitCoins, I leveraged my technology expertise to safeguard the organization's sensitive data from internal and external threats, including cybercrime and unauthorized use.My primary responsibilities included ensuring the organization's IT infrastructure was secure and up-to-date with the latest security protocols. Additionally, I collaborated with cross-functional teams to identify potential security risks and develop solutions to mitigate them.My efforts also extended to optimizing the organization's use of technology to ensure seamless availability for users. I employed a holistic approach that balanced the need for accessibility with the necessity for robust security measures.My commitment to delivering high-quality services and my passion for cybersecurity enabled me to make a significant impact during my time at NakitCoins. Show less
  • Zerocopter
    Bug Bounty Hunter
    Zerocopter Sep 2017 - Mar 2020
    Working as a security researcher, testing third-party web applications for security vulnerabilities and disclosing them responsibly to their respective security teamshttps://app.zerocopter.com/user/h102x

Hazem Elsayed Skills

Python Css Network Security Linux Javascript Cybersecurity Web Application Penetration Testing Bash Html

Hazem Elsayed Education Details

Frequently Asked Questions about Hazem Elsayed

What company does Hazem Elsayed work for?

Hazem Elsayed works for Hackerone

What is Hazem Elsayed's role at the current company?

Hazem Elsayed's current role is Lead Penetration Tester.

What schools did Hazem Elsayed attend?

Hazem Elsayed attended Beykoz Üniversitesi.

What skills is Hazem Elsayed known for?

Hazem Elsayed has skills like Python, Css, Network Security, Linux, Javascript, Cybersecurity, Web Application Penetration Testing, Bash, Html.

Who are Hazem Elsayed's colleagues?

Hazem Elsayed's colleagues are Pata Nhi, Haythem Smith, Rishabh Patel, Bhavy Seth, Ahmed Manaa, Mussa Selman., Security Alert.

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