UnknownGovernment IDFinancial accountHigh

Webster Bank, National Association

bd_284b5e4097e91083 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Apr 10, 2023

To disclose

—

Affected

21,052state residents only

Linked

5 filings

Confidence

95%

Full breach record for Webster Bank, National Association →6 incidents on file

Webster Bank, NA reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2023-04-10. 21,052 Massachusetts residents were affected. The report records the breach type as electronic.

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Massachusetts clock✓ MA credit monitoring due

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Apr 10, 2023

Filed

—

Corroborated · see linked filings

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

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_8dd6fb8c661b3b582023-04-10Candidate
New Hampshire State AGDaixinbd_b26f4a157e67d25b2023-04-12 · +2dVerified
Maine State AGbd_519c51969ff5e9872023-04-28 · +18dVerified
New Hampshire State AGbd_8b98ad645053816c2023-05-03 · +23dVerified

Name: Webster Bank, National Association
norm: webster bank national

Name: Webster Bank, National Association
norm: webster bank national

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 21,052state-resident count only
Data types: Government IDFinancial account
Data elements: Social Security numberFinancial account number
Stated not affected: Driver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown
Threat actor: External

Compliance flags: MA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 3 states

View merged incident ↗

Maine State AGApr 10 · first

Massachusetts State AGApr 10 · first · this page

New Hampshire State AG+2d

Maine State AG+18d

New Hampshire State AG+23d

Pattern: first filing Apr 10 (ME), last May 3 (NH) — a 23-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.

Source URL: https://www.mass.gov/doc/data-breach-report-2023/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 10, 2023
Raw hash: 17baf792a02c6084d0d9d82c7e1e1a66544c433619fd01e4d3a021ce62259484

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityWebster Bank, National Association

Victim entityWebster Bank, National Association

IncidentUnknown

ComplianceMA credit monitoring due

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov