Clustered 3 filings across 1 jurisdiction · filing window Jun 2, 2014 → Jun 17, 2014. View entity profile → Other incidents for this victim →
incident inc_52f30ec08e404fae · merge_method deterministic · confidence 100%
Time between earliest and latest filing
Not recorded for this incident
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.
PII · Identity (basic) · Financial account
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jun 13, 2012
When the intrusion reportedly occurred, per the linked filings
American Express notified California residents that a merchant where they used their card detected unauthorized access to website files on June 13, 2012. 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.
American Express notified customers that a merchant where they used their cards detected unauthorized access to its data files on March 8, 2013. The affected data included American Express 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. No specific count of affected individuals was disclosed in this notification.
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 notified customers that a merchant where they used their cards experienced unauthorized access to data files on March 8, 2013. Affected data included card account numbers, names, and expiration dates. Social Security numbers were not impacted. American Express placed additional fraud monitoring on affected accounts and offered identity theft assistance.