Eastern Bank
bd_f59acb674bba6daf · schema v1 · pii pii-v1
Full breach record for Eastern Bank →204 incidents on fileEastern Bank notified Massachusetts customers on May 13, 2026, that a merchant accepting Eastern Bank Debit MasterCard BusinessCards experienced a security breach. The bank could not obtain details from the merchant. Eastern Bank took proactive measures including lowering card limits to $500 and issuing new debit cards to affected customers. Customers were instructed to activate new cards, destroy old ones, and monitor accounts for suspicious activity. No specific data types or counts were disclosed.
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Incident timeline — partial
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Breach window unknown
May 13, 2026
Filed
No interval is drawn: no breach start or discovery date is on record for this filing.
Linked disclosures
Why this link?Regulatory filings (5) · sorted by filing gap
- Massachusetts State AGbd_566f14d500ef34f32026-06-30 · +48dCandidate
- Massachusetts State AGbd_d9eac86bf9dbdfd72026-07-24 · +72dCandidate
- Massachusetts State AGbd_682592668a83450f2026-08-06 · +85dCandidate
- Massachusetts State AGbd_cf7ae86f84408df72026-09-01 · +111dCandidate
Show 1 more filing ↓Show fewer ↑up to 141d gap
- Massachusetts State AGbd_8bf774595ecbe34d2026-10-01 · +141dCandidate
Filing propagation · 6 filings
View merged incident ↗Pattern: first filing May 13 (MA), last Oct 1 (MA) — a 141-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.