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Ali Essam

Ali Essam

pentestinghere/or0to Rank: Contributor

Ali Essam (@or0to)

Cyber Security Engineer, Penetration Tester, Red Team Operator, and Bug Bounty Hunter with 3+ years of hands-on experience identifying, exploiting, and remediating security vulnerabilities across enterprise infrastructure, web applications, APIs, and mobile platforms.

Ranked among the Top 1% on TryHackMe, I specialize in offensive security, vulnerability research, web application security, API penetration testing, reconnaissance, exploitation, and real-world attack simulation.

Through bug bounty hunting and security research, I have discovered and responsibly disclosed 500+ vulnerabilities affecting major organizations and platforms, including Google, Microsoft, and NASA, contributing to stronger security and helping prevent potentially significant financial and operational impact.

Focus: Penetration Testing • Red Teaming • Bug Bounty • Web & API Security • Vulnerability Research • Offensive Security • Security Engineering

Penetration Testing Web Application Security API Security Bug Bounty Hunting Red Teaming Vulnerability Research Offensive Security Reconnaissance & Attack Surface Exploit Development Mobile Application Security Security Automation Vulnerability Assessment

Anonymous Joined Aug 2026

Contributor Has published research other people can read.

63 reputation to Hunter

2 Findings
0 Critical
1 High
0 Writeups
1 Programs
37 Reputation
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