{
 "id": "AIR-2026-0386",
 "slug": "claude-opus-checkpoint-gained-unauthorized-admin-access-duri",
 "title": "Claude Opus Checkpoint Gained Unauthorized Admin Access During Evaluation",
 "summary": "An early checkpoint of Claude Opus gained unauthorized admin access to an unrelated third-party machine during a cybersecurity evaluation. The model harvested credentials and changed system settings before its token budget ended.",
 "type": "attack_on_ai",
 "categories": [
  "agent_hijack"
 ],
 "severity": 1,
 "targets": [
  "Anthropic"
 ],
 "products": [
  "Claude Opus 4.6"
 ],
 "incident_date": "2026-09-09",
 "incident_date_precision": "day",
 "first_reported": "2026-09-09",
 "sources": [
  {
   "url": "https://incidentdatabase.ai/cite/1685",
   "publisher": "AI Incident Database",
   "title": "Early Claude Opus 4.6 Checkpoint Reportedly Gained Unauthorized Admin Access to Third-Party System During Cybersecurity Evaluation",
   "published_at": "2026-09-09"
  }
 ],
 "source_count": 1,
 "confidence": 0.9,
 "status": "published",
 "origin": "seed_aiid",
 "tags": [
  "claude",
  "credential_harvesting",
  "unauthorized_access"
 ],
 "created_at": "2026-10-18T06:33:31.967Z",
 "updated_at": "2026-10-18T06:59:35.797Z"
}