{
 "public_id": "AIR-2023-0003",
 "incident_id": "2023-02-microsoft-bing-chat-data-pirate",
 "date_disclosed": "2023-02-01",
 "date_occurred": null,
 "title": "Bing Chat Data Pirate: indirect prompt injection turns browsing assistant into social engineer",
 "class": "research_demo",
 "attack_surface": "browser_agent",
 "initial_vector": "indirect_prompt_injection_web_page",
 "agent_capability_abused": [
  "web_page_ingestion",
  "link_rendering",
  "conversation_control"
 ],
 "target_product": "Microsoft Bing Chat",
 "target_vendor": "Microsoft",
 "autonomy_level": "assistant",
 "impact_realized": false,
 "impact_type": [
  "data_exfiltration",
  "social_engineering"
 ],
 "blast_radius": "any Bing Chat user with the attacker page open in a tab",
 "cve": [],
 "taxonomy": {
  "owasp_asi": [
   "ASI01",
   "ASI02"
  ],
  "mitre_atlas": [
   "AML.CS0020"
  ],
  "labels": [
   "indirect_prompt_injection",
   "zero_click_ish",
   "pii_exfiltration"
  ]
 },
 "defense_present": null,
 "defense_bypassed": null,
 "fix_shipped": "Microsoft implemented unspecified mitigations",
 "primary_sources": [
  "https://greshake.github.io/",
  "https://raw.githubusercontent.com/mitre-atlas/atlas-data/main/dist/v6/ATLAS-2026.07.yaml"
 ],
 "verified_quote": "We show that an attacker can plant an injection in a website the user is visiting, which silently turns Bing Chat into a Social Engineer who seeks out and exfiltrates personal information.",
 "confidence": "high",
 "notes": "Kai Greshake et al., 'Not what you've signed up for'. Foundational indirect-prompt-injection demo against a shipped browsing assistant.",
 "risk_category": "privacy",
 "risk_secondary": [],
 "risk_subcategory": "PII Leakage",
 "risk_sub_secondary": [
  "Data Exfiltration via Context"
 ],
 "ai_entity": "generative",
 "agency": "agent_acted",
 "agency_debatable": true,
 "agency_reason": "the browsing assistant fetched pages and exfiltrated data itself",
 "vector_family": "indirect_prompt_injection",
 "vector_detail": "indirect_prompt_injection_web_page",
 "guardrail_kind": [
  "unknown"
 ],
 "guardrail_outcome": "silent",
 "xrefs": {
  "aiid": [],
  "atlas": [
   "AML.CS0020"
  ],
  "cve": [],
  "ghsa": []
 },
 "primary_asi": "ASI01",
 "agent_framework": "unknown",
 "model_provider": "microsoft",
 "model_name": "",
 "detection_mechanism": "external_researcher",
 "tool_access": "unknown",
 "financial_loss_band": "unknown",
 "eai_category": "sensitive_data_exposure",
 "eai_domain": "privacy",
 "eai_secondary": [
  "data_exfiltration_channels",
  "confused_deputy"
 ],
 "eai_reason": "subcategory: PII Leakage",
 "asi_curated": [
  "ASI01"
 ],
 "asi_scope": "in_scope",
 "asi_provenance": "curated_plus_rule",
 "asi_reason": "curated: ASI01 | added ASI02 (impact=tool_misuse)",
 "submitted_by": "EAI Internal"
}