'Model weights need the same level of scrutiny as code': Microsoft researchers find AI agents can be backdoored by editing just a few neurons

TechRadar
By Sead FadilpašićNov 11, 2026, 1:05 pm189 ptsTrendingTop
Researchers demonstrated a “sleeper agent” AI attack by modifying a handful of dormant neurons inside an LLM The backdoor remains hidden until a specific trigger appears, then executes attacker-defined actions Defenders are urged to verify model integrity, audit weights, and tightly restrict AI agent…

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