Clustered 5 filings across 1 jurisdiction · filing window Dec 4, 2013 → Jan 16, 2014. View entity profile → Other incidents for this victim →
incident inc_efee7f0b19874070 · merge_method llm · 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 · Financial account
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Feb 10, 2013
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 its data files on February 10, 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 cards and offered identity theft assistance.
American Express notified California residents that a merchant where they used their card detected unauthorized access to website files on May 28, 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 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 notified customers that their card account numbers, names, and expiration dates were recovered during a law enforcement and/or American Express investigation. Social Security numbers were not impacted. No unauthorized activity was detected. American Express placed additional fraud monitoring on affected cards and offered identity theft assistance.
American Express notified California residents that their card account numbers, names, and expiration dates were recovered during a law enforcement or internal investigation. Social Security numbers were not impacted. American Express placed additional fraud monitoring on affected cards and offered identity theft assistance. No specific dates for the incident or discovery were provided in the notice.
American Express notified customers that a merchant where they used their card detected unauthorized access to its data files on November 1, 2012. 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.