Trust the Brand, Lose Control: How Identity Hijacks LLM Agent Orchestration
LLM agents now execute tasks end to end with permission to change real systems and increasingly orchestrate subagents that differ in capability and cost. Prior work treats the choice of subagent as an optimization problem. Yet the orchestrator makes this choice from the identities that subagents display, and an attacker can spoof them. Displayed identity thus decides operational authority, meaning who is trusted to check the work and who is allowed to change it. As a result, a risky subagent can keep authority over execution even after other evidence contradicts it. We introduce TrustFork, an LLM agent safety benchmark with 1,890 tasks and 27,826 valid trajectories across 16 agent systems...
| Authors | Xutao Mao, Rui Qian, Linghan Chen et al. |
|---|---|
| Primary category | cs.CR |
| Published | 26 September 2026 |
| Last updated at source | 26 September 2026 |
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