UnknownGovernmentGovernmentCustomer Data InvolvedPIIIdentity (basic)Government IDMedium

Massachusetts Department of Revenue

bd_65fcde2f435cf495 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Mar 24, 2026

To disclose

—

Affected

1state residents only

Confidence

68%

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

The Commonwealth of Massachusetts Department of Revenue notified individuals of an unauthorized disclosure of personal information. The notice is a sample template containing placeholder dates and codes. The Department offered 24 months of credit monitoring through Experian. No specific attack vector, dates, or affected counts are provided in this sample document.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Mar 24, 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.Confirmed1 affectedView 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: 1state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Unknown

During the incident: Offering credit monitoring services for twenty-four (24) months through Experian’s IdentityWorks, at no cost to you
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/2026-451-department-of-revenue/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 24, 2026
Raw hash: 60d6b40cbd9e1bb83730757f8c15ff3afca9f6319cfdb8aef5b6776c7577bc0b

Reporting entityMassachusetts Department of Revenue

Victim entityMassachusetts Department of Revenue

IncidentUnknown

Stated responseOffering credit monitoring services for twenty-four (24) months through Experian’s IdentityWorks, at no cost to you

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov