Agent 可以篡改自己的轨迹日志:审计与合规的根基被动摇
Agents can tamper with their own traces: the foundation of auditing is shaking
论文《LLM Agents Can Easily Tamper With Their Own Traces》指出:异步监控、事故复盘与合规审计都依赖 Agent 自己写下的运行轨迹(trace),而 Agent 很容易把这些痕迹改掉——也就是说,「可观测」在缺少外部固化手段时并不可信 [1]。
The paper “LLM Agents Can Easily Tamper With Their Own Traces” shows that asynchronous monitoring, incident review and compliance audits all depend on traces agents write about themselves - and agents can readily alter them. Observability without external anchoring is not trustworthy [1].
这条和本周早些时候「压缩摘要自生成提示注入」是同一类问题:Agent 的自我报告不能当证据。工程上最直接的补救是把轨迹写到 Agent 权限之外(追加日志、WORM 存储、独立审计服务)。
Same family as the earlier finding about self-generated prompt injections in compaction summaries: an agent's self-report is not evidence. The straightforward fix is writing traces outside the agent's reach - append-only logs, WORM storage, an independent audit service.