leeky.sh

Application & AI security

I build the AI that finds vulnerabilities, and I break the systems it audits.

Eight years in offensive security: red team at a major cloud provider, first privacy security hire at a large social platform, AppSec at an enterprise networking company, now founding engineer at an AI security startup. I write about the tools I build: LLM-driven vulnerability scanners, continuous security review at ecosystem scale, and the occasional teardown of a product that overstates what it protects.

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Data & Fraud · Jun 2026

I Vibecoded a Medicare Fraud Detector in a Weekend to See How Hard It Actually Is

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.

DuckDBFastAPIfraud detectionopen data

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