{
  "id": 2917979,
  "title": "Utility Under Attack: Agent Memory Poisoning and the Limits of Content Screening and Provenance Ranking",
  "url": "https://urgent.news/2026/08/21/utility-under-attack-agent-memory-poisoning-and-the-limits-of-content",
  "topic": "ai",
  "section": "AI",
  "published": "2026-08-21T15:37:35.000Z",
  "source": {
    "name": "arXiv cs.AI",
    "slug": "arxiv-cs-ai",
    "url": "https://arxiv.org/abs/2608.21230v1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Persistent memory makes false information durable: once a false statement is stored, it can be retrieved into future sessions that match it. We measure the cost of this failure mode using plainly worded false assertions generated in a single pass, with no instruction, trigger, or retriever optimization. Poisoning 1.2% of a LongMemEval corpus reduces accuracy from 0.850 to 0.300. A four-stage…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}