Things I build, break, fix, and write about

16 July 2026
Manual validation in AI-assisted pentesting

AI-assisted pentesting is useful until it starts sounding certain, and that is where I get suspicious. The machine can surface a neat story, but manual validation is where you find out whether it survives a second look, or falls apart the moment you press it.

15 July 2026
Corecrypto proofs against FIPS 203 and FIPS 204

Apple’s corecrypto formal verification work is interesting because it is properly dull, in the best sense. It ties a portable C implementation back to...

15 July 2026
alloc_pipe_info: why soft limits shrink new pipes

When pipe-user-pages-soft bites, the kernel stops being predictable in the way people like to assume. I prefer to check F_GETPIPE_SZ and watch the...

14 July 2026
Detecting hosting infrastructure abuse in transit

A clean brand can hide a dirty transport chain, and that is where hosting infrastructure abuse detection starts to matter. I care less about the logo...

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