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
Identity (basic) · Financial account
Jurisdictions
1
CA
Linked filings
3
all State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Mar 13, 2011
When the intrusion reportedly occurred, per the linked filings
1,230 days
3 State AG filingsJul 25, 2014 – Aug 27, 2014ExpandCollapse
American Express (AXP) notified California residents that their card account information (account number, name, expiration date) was recovered by law enforcement during an investigation. SSN was not impacted. No unauthorized activity was detected. AXP placed additional fraud monitoring on affected cards and offered identity theft assistance.
American Express notified customers that a merchant where they used their cards detected unauthorized access to website files on March 13, 2011. Affected data included card account numbers, names, and expiration dates. Social Security numbers were not impacted. American Express placed additional fraud monitoring on affected cards and offered identity theft assistance.
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.
American Express Travel Related Services Company, Inc. notified California residents that their card account information, including card numbers and names, was recovered during a law enforcement investigation. The breach did not impact Social Security numbers. The company implemented additional fraud monitoring and offered identity theft assistance to affected cardmembers.