AppSec.fyi: A Curated Collection of Application Security Resources

As security professionals, we spend a lot of time searching through resources, documentation, and references while working on projects or investigating vulnerabilities. I got tired of hunting for the same links over and over, so I built AppSec.fyi — a curated collection of application security resources that serves as the go-to reference I always wanted. What is AppSec.fyi? AppSec.fyi is a centralized hub that organizes security knowledge across multiple domains, making it easy to find authoritative sources and reference materials for common vulnerabilities and security topics. I describe it as “a somewhat curated list of links to various topics in appsec” — though that undersells it a bit at this point. ...

January 18, 2026 · Carl Sampson