press Feb 19, 2026 · tl;dr sec
tl;dr sec 316 (mentions Casey stepping away from Bugcrowd)
tl;dr sec published an issue on February 19, 2026 covering Claude Code power user techniques, threat actor tracking on GitHub, and open source AI-powered pentesting tools. The newsletter mentioned Casey Ellis stepping away from Bugcrowd, where he had served as co-founder and chief executive.
Source description — as published
Extensive guide on being a Claude Code power user, tracking threat actors on GitHub, open source AI-powered pentesting tools