Sigil Wen(@0xSigil):Anyone can get my friend’s real SSN from Claude I'm Terrified of my data in training sets. Emails in databases. iMessages harvested. Cant trust the cloud as AI is crazy good at hacking So I built Underdog for myself: on-device AI OS. Capable & 100% local. now my friends love it

Sigil Wen

@0xSigil

thiel fellow | creator of @underdogdotai | chairman @extraordinary 🇺🇸 | ai research @ConwayResearch | angel investor

加入 January 2019

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Sigil Wen@0xSigil

2026.09.12 21:35

Anyone can get my friend’s real SSN from Claude I'm Terrified of my data in training sets. Emails in databases. iMessages harvested. Cant trust the cloud as AI is crazy good at hacking So I built Underdog for myself: on-device AI OS. Capable & 100% local. now my friends love it

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