Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
State AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Affected (total reported)
—
Data types
2
Financial account · Identity (basic)
Jurisdictions
1
CA
Linked filings
2
all State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Sep 23, 2015
When the intrusion reportedly occurred, per the linked filings
American Express notified customers that a data security incident occurred at a third-party merchant where they used their cards. Account information, including card numbers, names, and expiration dates, may have been compromised. American Express systems were not directly breached. The company is monitoring accounts for fraud.
California AG SB24-60674: American Express Travel Related Services Company, Inc. reported a data security incident involving a merchant where Card Members used their cards. Account numbers, names, and expiration dates may have been compromised. American Express systems were not directly breached; notice was sent as a precaution. Customers are advised to monitor accounts and review credit reports.
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.