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LowContext BleedRealized

Cross-session / cross-user context bleed

Privacy & Data Protection

Description

State, cache, or memory leakage causes one user's context to appear in another user's session.

Example scenario

A shared cache returns one customer's prior conversation snippet to a different customer.

Real-world evidenceRealized

GDPR enforcement actions for unlawful international data transfers are confirmed production incidents. The Court of Justice of the EU invalidated the EU-US Privacy Shield in Schrems II (2020), and DPAs have since issued substantial fines — including against Meta Ireland — for continuing to transfer data to the US without adequate safeguards. AI-specific complaints (e.g., EU DPA investigations into ChatGPT data routing) have also been opened.

Primary mitigations

  • Strict session isolation
  • per-user memory scoping
  • cache keying by identity
  • isolation testing.

Detection signals

Cross-session leakage tests; cache-key audits; session-isolation red-team.

Mitigating controls

4
Non-agentic controls

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