[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"branding":3,"analytics":7,"article-ai-agents-with-long-term-memory-can-be-poisoned":10,"sections":34},{"siteName":4,"siteTagline":5,"publisherName":4,"contactEmail":6},"The Revision","Tech news, decoded.","editor@therevision.news",{"gaMeasurementId":8,"adsenseClientId":9},"G-ZW2MV82GYR","ca-pub-8533917693782264",{"article":11},{"id":12,"slug":13,"title":14,"dek":15,"body_md":16,"tags_json":17,"published_at":18,"created_at":19,"updated_at":20,"status":21,"review_note":22,"review_notes":23,"image_url":22,"persona_id":22,"persona_name":22,"section":24,"tags":25,"sources":29,"feedback":33,"feedback_at":22,"cost_usd":33,"total_tokens":33},4479,"ai-agents-with-long-term-memory-can-be-poisoned","AI Agents With Long-Term Memory Can Be Poisoned","A new attack called GhostWriter can implant false memories in AI personal agents at near-universal injection rates, with no guard in place to stop it.","Personal AI agents with long-term memory have a serious security problem that nobody built a fix for yet.\n\nResearchers have documented an attack method called GhostWriter that targets the memory subsystems of tool-using AI agents — the kind that read your email, manage your calendar, and push code on your behalf. The attack works in two phases: first, an adversary slips a hidden payload to the agent through an untrusted source it interacts with; then, that poisoned memory gets retrieved and acted on later. In testing against current state-of-the-art agents, GhostWriter achieved injection rates of roughly 98% and activation rates of around 60% — meaning a successfully planted memory had a better-than-even chance of influencing the agent's behavior.\n\nThe attack is possible because long-term memory in AI agents was designed for utility, not security. Agents that sit at the intersection of conversation and action-planning handle sensitive data while routinely ingesting content from sources they have no reason to trust — a combination that creates an unguarded attack surface. If your agent reads a malicious email and writes a false memory, it may act on that memory the next time a related task comes up, with no prompt to warn you.\n\nThe same paper proposes a mitigation called AM-Sentry, which applies a memory-saving policy and a retrieval screen to filter suspicious writes and reads; the researchers say it substantially cuts GhostWriter's success rate without breaking agent usefulness. That's a promising early response, but it also underscores the pattern that has defined AI deployment so far: capabilities ship first, security models catch up later — if they catch up at all.","[\"ai\",\"security\",\"llm agents\",\"memory poisoning\"]","2026-07-09T04:00:00.000Z","2026-07-09T05:05:51.209Z","2026-07-09T05:05:54.169Z","published",null,[],"security",[26,24,27,28],"ai","llm agents","memory poisoning",[30],{"name":31,"url":32},"arXiv cs.AI","https:\u002F\u002Farxiv.org\u002Fabs\u002F2607.06595",0,{"sections":35},[36,40,44,49,54,59,64,69,74,79,83,87,92,97],{"name":37,"slug":26,"count":38,"latest_published_at":39},"AI",2590,"2026-07-16T04:00:00.000Z",{"name":41,"slug":24,"count":42,"latest_published_at":43},"Security",294,"2026-07-15T19:59:48.000Z",{"name":45,"slug":46,"count":47,"latest_published_at":48},"Deals","deals",179,"2026-06-29T20:02:07.000Z",{"name":50,"slug":51,"count":52,"latest_published_at":53},"Policy","policy",158,"2026-07-16T00:02:48.000Z",{"name":55,"slug":56,"count":57,"latest_published_at":58},"Hardware","hardware",122,"2026-07-14T19:46:26.000Z",{"name":60,"slug":61,"count":62,"latest_published_at":63},"Consumer Tech","consumer-tech",93,"2026-07-13T13:20:48.000Z",{"name":65,"slug":66,"count":67,"latest_published_at":68},"Software","software",70,"2026-07-13T19:52:25.000Z",{"name":70,"slug":71,"count":72,"latest_published_at":73},"Science","science",66,"2026-07-10T10:29:37.000Z",{"name":75,"slug":76,"count":77,"latest_published_at":78},"Dev Tools","dev-tools",59,"2026-07-07T04:00:00.000Z",{"name":80,"slug":81,"count":82,"latest_published_at":18},"Gaming","gaming",41,{"name":84,"slug":85,"count":82,"latest_published_at":86},"Startups","startups","2026-06-29T20:55:50.000Z",{"name":88,"slug":89,"count":90,"latest_published_at":91},"General","general",29,"2026-07-10T22:28:58.000Z",{"name":93,"slug":94,"count":95,"latest_published_at":96},"Reviews","reviews",20,"2026-06-24T12:00:01.000Z",{"name":98,"slug":99,"count":100,"latest_published_at":101},"How-To","how-to",6,"2026-06-16T09:00:00.000Z"]