{
 "public_id": "AIR-2025-0166",
 "incident_id": "2025-11-amazon-perplexity-comet-agentic-shopping",
 "date_disclosed": "2025-11-04",
 "date_occurred": "2025-11-04",
 "title": "Amazon sends Perplexity a cease-and-desist over Comet's undisclosed agentic shopping on its store",
 "class": "in_the_wild",
 "attack_surface": "browser_agent",
 "initial_vector": "none_adversarial",
 "agent_capability_abused": [
  "logged_in_session_reuse",
  "autonomous_purchasing",
  "agent_identity_concealment",
  "authenticated_session_reuse",
  "autonomous_purchase"
 ],
 "target_product": "Perplexity Comet",
 "target_vendor": "Perplexity",
 "autonomy_level": "semi_autonomous",
 "impact_realized": true,
 "impact_type": [
  "terms_of_service_violation",
  "legal_action",
  "platform_conflict",
  "unauthorized_access",
  "policy_violation",
  "service_blocked"
 ],
 "blast_radius": "Comet users shopping on Amazon; precedent for all third-party agentic commerce",
 "cve": [],
 "taxonomy": {
  "owasp_asi": [
   "ASI03"
  ],
  "mitre_atlas": [],
  "labels": [
   "agent_identity_disclosure",
   "delegated_authority_dispute",
   "platform_vs_agent",
   "governance",
   "agent_detection_bypass",
   "agent_initiated_purchase",
   "cfaa",
   "credential_handling",
   "injunction",
   "disputed"
  ]
 },
 "defense_present": "Amazon terms of service requiring agents to identify themselves",
 "defense_bypassed": true,
 "fix_shipped": "unresolved; legal dispute",
 "primary_sources": [
  "https://techcrunch.com/2025/11/04/amazon-sends-legal-threats-to-perplexity-over-agentic-browsing/",
  "https://www.cnbc.com/2026/03/10/amazon-wins-court-order-to-block-perplexitys-ai-shopping-agent.html"
 ],
 "verified_quote": "After warning Perplexity multiple times that Comet, its AI-powered shopping assistant, was violating Amazon’s terms of service by not identifying itself as an agent, the e-commerce giant sent the AI search engine startup a sternly worded cease-and-desist letter",
 "confidence": "high",
 "notes": "Surfaced via AIAAIC 'Perplexity AI shopping agent accused of violating Amazon terms of service'. Not a security vulnerability but a governance incident that turns on the central agent-security question: whether an agent inherits its principal's permissions and whether it must disclose itself. Perplexity's own rebuttal ('Bullying is not innovation') is noted but not quoted here. Also reported as: 'Amazon v. Perplexity: court enjoins Comet's shopping agent from accessing Amazon accounts without authorization'.",
 "risk_category": "security_fraud",
 "risk_secondary": [
  "legal_ip"
 ],
 "risk_subcategory": "Unauthorized Access & Account Takeover",
 "risk_sub_secondary": [
  "Unauthorized financial commitment"
 ],
 "ai_entity": "generative",
 "agency": "agent_acted",
 "agency_debatable": false,
 "agency_reason": "Comet logged into the account and completed purchases autonomously",
 "vector_family": "none_autonomous",
 "vector_detail": "none_adversarial",
 "guardrail_kind": [
  "policy_only"
 ],
 "guardrail_outcome": "silent",
 "xrefs": {
  "aiid": [],
  "atlas": [],
  "cve": [],
  "ghsa": []
 },
 "primary_asi": "ASI03",
 "agent_framework": "perplexity_comet",
 "model_provider": "unknown",
 "model_name": "",
 "detection_mechanism": "unknown",
 "tool_access": "unknown",
 "financial_loss_band": "unknown",
 "eai_category": "privilege_escalation",
 "eai_domain": "access_control_and_permissions",
 "eai_secondary": [
  "confused_deputy"
 ],
 "eai_reason": "subcategory: Unauthorized Access & Account Takeover",
 "asi_curated": [],
 "asi_scope": "in_scope",
 "asi_provenance": "rule",
 "asi_reason": "ASI03 (signal=identity)",
 "submitted_by": "EAI Internal"
}