Caleb Lerch

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Located in Calgary


Canada

I work in application security focusing on web application penetration testing and security research.

To me, ethical hacking is exploring everything we can make technology do. When this exploration intersects with a security impact, I believe in clear communication, responsible disclosure, and effecting positive change in the world.

The goal of this site is to share my experiences and methods in security research, including how I arrive at findings and break down vulnerabilities. I aim to present technical content in an approachable way.

I hope you enjoy.

news

Jun 15, 2026 More Service Worker Shenanigans! - Another Firefox Vulnerability
May 25, 2026 Spoke at BSides Calgary 2026!
May 14, 2026 Retroactive Post: - Am I Smarter Than Microsoft Defender
Mar 23, 2026 Appeared as a Podcast Guest on Hackers on the Rocks with Evan Dornbush and Casey Ellis!
Jan 13, 2026 My first CVE! - Firefox Remote Crash