Trust is not a security primitive: why AI agent sandboxes must assume nothing about the model

basedjensen · x · 2026-09-30

A widely shared argument for sandboxing AI agents: a sandbox makes no assumptions about whether the model is helpful, deceptive, situationally aware, or plotting — it simply removes network, credentials, shell, persistence, and arbitrary execution. Every generation of engineers believed some trust boundary was unnecessary; every generation learned that trust is not a security primitive, and AI doesn't repeal that lesson.

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