I'm Patrik Fehrenbach. I live in Freiburg, Germany.

I'm a security professional with over a decade of experience in application security and bug bounty hunting. With a Master's degree in Mobile Systems, I specialize in Application Security Assessment, Penetration Testing, and Manual Audit of Mobile and Web Applications.

As an active contributor to the Bug Bounty Community and Founding Member of the Bug Bounty Forum, I've discovered vulnerabilities in major platforms including Google, PayPal, Facebook, Microsoft, and Twitter.

My expertise spans across various security domains, from managing global security teams to conducting in-depth security assessments. I'm recognized as a HackerOne Clear Certified, Bugcrowd Verified, and Intigriti Verified Researcher.

When I'm not hunting bugs or developing security tools, I enjoy photography, hiking, and perfecting my barista skills with specialty coffee.