UnknownGovernmentGovernmentIdentity (basic)Government IDMedium

Massachusetts Department of Revenue

bd_1f2d7138e70afb6c · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

May 12, 2026

To disclose

—

Affected

Not disclosed

Confidence

57%

Full breach record for Massachusetts Department of Revenue →44 incidents on file

Massachusetts Department of Revenue (DOR) issued a notice under M.G.L. c. 93H regarding an unauthorized disclosure of personal information. The incident involved identity_basic and identity_government data. DOR offered 24 months of credit monitoring via Experian. Specific dates, affected count, and cause were not disclosed in this template notice.

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Incident timeline — partial

? — ?

Breach window unknown

May 12, 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.ConfirmedView incident

Name: Massachusetts Department of Revenue
norm: massachusetts department of revenue

Name: Massachusetts Department of Revenue
norm: massachusetts department of revenue
Industry: Governmentllm

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unknown

During the incident: Offering 24 months of complimentary credit monitoring through Experian’s IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/2026-760-department-of-revenue/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 12, 2026
Raw hash: 9b7224993540d251b241735812123a3985c4ba841b8d7e8ad2b47e41ed741b7b

Reporting entityMassachusetts Department of Revenue

Victim entityMassachusetts Department of Revenue

IncidentUnknown

Stated responseOffering 24 months of complimentary credit monitoring through Experian’s IdentityWorks

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov