Brockman: OpenAI put 25% of production engineers on defense, used Astra to exhaust its own vulns
mimi10v3 · x · 2026-09-15
In an a16z interview, OpenAI president Greg Brockman detailed how OpenAI pointed its model Astra at its own systems: 25% of production engineers were pulled off projects into full-time defense, up-leveling security architecture and using models to find holes. They found and fixed serious issues until findings saturated — all P0s Astra could find, with a new round each new model. He stresses staying in a tight loop as cyber capability improves. A commenter suggests extending this to formally verifying critical open-source infrastructure.
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