PrivScope: Task-scoped Disclosure Control for Hybrid Agentic Systems
Hybrid local--cloud agents enrich user requests with context from persistent working state before delegating capability-intensive subtasks to a cloud language model (CLM). While this enrichment can improve task success, it also exposes unnecessary information in the cloud-bound payload, including task-irrelevant context, carryover from prior workflows, and overly specific sensitive details, resulting in \emph{over-disclosure}. Existing solutions either isolate workflows to limit cross-workflow leakage or apply general-purpose sanitization that does not reason over LC-assembled payload scope. We present \textsc{PrivScope}, a trusted on-device payload governor that enforces \emph{task-scope...
| Authors | Shafizur Rahman Seeam, Zhengxiong Li, Zhiyuan Yu et al. |
|---|---|
| Primary category | cs.CR |
| Published | 15 May 2026 |
| Last updated at source | 19 May 2026 |
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