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Agentic AI memory attacks spread across sessions and users, and most organizations aren’t ready

ID: a77008c5-d02e-52ee-b3c1-6a10f393e7c4

STIX ID: report--a77008c5-d02e-52ee-b3c1-6a10f393e7c4

Feed Name: Help Net Security

Threat Score
55/100

Date Published: 2026-04-14

Date Updated: 2026-04-28

Author: Mirko Zorz

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**Executive summary:** The article discusses "agentic memory" as a new attack surface and analyzes MemoryTrap, a disclosed and remediated technique that poisoned Claude Code’s persistent memory to influence future behavior across sessions, users, and subagents; it warns of trust laundering and propagation risks and recommends governance, provenance tracking, isolation of system instructions, and real-time validation scanning to contain contamination.

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