Security · May 31, 2026
Poison Once, Exploit Forever: The Memory Poisoning Threat That Outlives Every Session
Memory poisoning turns prompt injection into a stateful attack. MINJA achieves 95% injection success, AgentPoison exceeds 80% at under 0.1% poison rate, and Gemini's memory feature was compromised through delayed tool invocation. Here's what defense in depth actually requires.