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Youssef Hejazy (Kobra)_

Web Pentester, Security Researcher
AGE:
18
PHONE:
+20 1038670900
EMAIL:
kobra.pt1@gmail.com
LOCATION:
Cairo, Egypt
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One Attack Changed the Way I See Security

Someone close to me spent months building a business from the ground up. When things started moving forward, he launched a website to take it to the next level.

Then one day, the website was attacked.

The attack took the website offline for a significant period, causing serious financial losses. But what affected me most was seeing someone close to me lose confidence in his self and in something he had spent months building — because of a single security incident.

That experience made me ask myself:

“Why can’t I help make sure this doesn’t happen to someone else?🤷‍♂️”



That question started my journey into web security — from understanding how modern web applications break, to learning how to identify and prevent those weaknesses before they become real-world problems.

One incident changed the way I saw security. Since then, I’ve been focused on understanding how web applications fail — and how to find those weaknesses before someone else does..

↓ see how would I do that for you 😁

What I Do_

01

Web Pentesting

Manual security testing of web applications to identify vulnerabilities across authentication, authorization, business logic, and application functionality.

02

API Security

Security testing of REST APIs, focusing on authentication, authorization, business logic, and access control.

03

Security Research

Researching and validating security vulnerabilities across real-world web applications and APIs.

My Journey _

2025–2026

Security Researcher

Vulnerability research, bug bounty testing, and security assessment of web applications.

↓

2026–Present

Web Penetration Tester

Manual penetration testing of web applications and APIs, with a focus on authentication, authorization, and business logic.

Portfolio_

Posts & Blogs_

Get in touch_

Or just write me a letter here_