leekyApplication and AI security. Writeups on vulnerability discovery at scale.https://leeky.sh/Building an LLM Vulnerability Scanner That Doesn't Drown You in False Positiveshttps://leeky.sh/writing/web3-security-scanner/https://leeky.sh/writing/web3-security-scanner/Static analysis finds patterns, LLMs find intent, and neither survives alone. So I built a scanner where five pipelines hunt and an adversarial validator kills what they get wrong.Mon, 20 Jul 2026 00:00:00 GMTI Vibecoded a Medicare Fraud Detector in a Weekend to See How Hard It Actually Ishttps://leeky.sh/writing/medfraud-medicare-detection/https://leeky.sh/writing/medfraud-medicare-detection/2025 and 2026 turned government fraud into a headline argument with numbers ranging from tens of millions to nine billion for the same programs. The data behind it is public, so I built a screening system over 47 million rows to find out what it can actually show.Tue, 30 Jun 2026 00:00:00 GMT