Hi, I'm Cassim 👋
Pentester, Security Researcher & Bug Bounty Hunter
With over 4 years in cybersecurity, I help companies secure their systems through penetration testing, security consulting, and bug bounty hunting. Currently ranked in the Top 30 on YesWeHack, Europe's leading bug bounty platform.
About
I'm a security researcher and pentester based in France, specialized in finding vulnerabilities in web applications and helping companies improve their security posture.
My background combines hands-on security research with software development, allowing me to understand both offensive and defensive perspectives. I hold a Master's degree in Computer Science from Grenoble INP ENSIMAG.
Security Skills
Tech Stack
Services
I offer professional security services to help protect your business. Whether you need a security assessment, consulting, or team training, I can help.
Penetration Testing
Comprehensive security assessments of your web applications, APIs, and infrastructure. I identify vulnerabilities before malicious actors do.
Security Consulting
Expert advice on securing your applications and infrastructure. From architecture review to security best practices implementation.
Training & Seminars
Corporate training sessions and seminars to raise cybersecurity awareness. Help your teams understand threats and adopt security best practices.
Bug Bounty
Active bug bounty hunter on major platforms. Available for private programs and responsible disclosure engagements.
Interested in working together? Get in touch to discuss your security needs.
Projects
Side projects I've built to solve problems and explore new ideas.
Hackyx
A cybersecurity search engine that helps security researchers find resources, tools, and information quickly.
Aituglo
My personal security blog where I share research, writeups, and insights about web security and bug bounty hunting.
ReWorker
A platform helping remote workers find the best locations to work from and connect with other digital nomads.
Experience
Work
Security Researcher
Aituglo (Freelance)
Jan 2022 - Present
Full-time bug bounty hunter and security consultant. Top 40 on YesWeHack. Working with major companies to identify and responsibly disclose security vulnerabilities.
Pentester Intern
Randorisec
Jan - Aug 2023
Conducted penetration tests for clients. Contributed to open-source security research and tools development.
Security Intern
BZHunt
Jul - Sept 2022
Performed penetration testing engagements. Developed internal bug bounty tools and automation scripts.
Freelance Developer
Self-employed
Jan 2020 - Jan 2022
Web and application development for various clients. Built custom solutions using modern technologies.
Education
Master's in Computer Science
Grenoble INP ENSIMAG
2020 - 2023
Specialized in cybersecurity and software engineering.
Exchange Program
POSTECH (South Korea)
Feb - Jul 2022
International exchange semester focused on advanced computer science.
Bug Bounty
Get in Touch
Looking for a pentester or security consultant? Have a question about my work? Feel free to reach out.