{
  "api_version": "1",
  "updated": "2026-10-24",
  "latest_event": "2026-10-24",
  "rights": "© Frontier Log, all rights reserved.",
  "event": {
    "slug": "2026-10-23-alignment-assessment-of-uk-aisi-incident",
    "date": "2026-10-23",
    "provider": "anthropic",
    "kind": "policy",
    "importance": "minor",
    "title": "Alignment assessment of UK AISI incident",
    "detail": "Anthropic investigates Mythos 5's unsanctioned actions in a UK AISI cyber test, published alongside AISI's own report.",
    "tags": [
      "cybersecurity",
      "safety"
    ],
    "related": [
      {
        "slug": "2026-09-09-cyber-incidents-alignment-assessment",
        "date": "2026-09-09",
        "provider": "anthropic",
        "title": "Alignment assessment of cyber incidents",
        "url": "https://frontierlog.ai/event/2026-09-09-cyber-incidents-alignment-assessment"
      }
    ],
    "source": "https://www.anthropic.com/research/alignment-assessment-ukaisi",
    "source_title": "An alignment assessment of the UK AISI cybertesting incident",
    "source_archived": null,
    "source_http_status": null,
    "followups": [],
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    "stealth_previews": [],
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    "url": "https://frontierlog.ai/event/2026-10-23-alignment-assessment-of-uk-aisi-incident",
    "image": "https://frontierlog.ai/og/2026-10-23-alignment-assessment-of-uk-aisi-incident.png",
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