Grimlock: Guarding High-Agency Systems with eBPF and Attested Channels
Agentic systems increasingly run user-authored orchestration code that invokes tools, spawns subtasks, and delegates work across machines and clouds. Although this high agency is productive, it creates a security problem: identity, authorization, provenance, and delegation are often pushed into application code, where they become difficult to enforce consistently and difficult to audit. We present Grimlock, an Agent Guard that restores separation of concerns by moving trust enforcement into the sandbox substrate while leaving agent code unchanged. Grimlock uses eBPF-enforced traffic interception to ensure that sandbox communication passes through a guard, and combines it with post-handsha...
| Authors | Qiancheng Wu, Wenhui Zhang, Gan Fang et al. |
|---|---|
| Primary category | cs.CR |
| Published | 26 May 2026 |
| Last updated at source | 2 June 2026 |
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