DisclosureLens
UnknownFinancial ServicesFinanceCustomer Data InvolvedFinancial accountFinancial credentialsLowContained

Eastern Bank

bd_5d67a8a4deeb84e5 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Mar 10, 2026

To disclose

—

Affected

50state residents only

Confidence

66%
Full breach record for Eastern Bank →204 incidents on file

Eastern Bank notified customers that a merchant where they used their Debit MasterCard BusinessCard may have experienced a security breach. The bank stated it was unable to provide additional details as none were provided to them. In response, Eastern Bank lowered daily transaction limits to $500 on affected cards and mailed new debit cards to customers. Customers were advised to monitor their accounts for suspicious activity.

Incident timeline — partial

? — ?

Breach window unknown

Mar 10, 2026

Filed

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed50 affectedView incident

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.