HackingFinancial accountIdentity (basic)Government IDMediumContained

University of Massachusetts Amherst

bd_5dc05e0f1fe55f4a · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jul 23, 2026

To disclose

—

Affected

1state residents only

Confidence

67%

Full breach record for University of Massachusetts Amherst →17 incidents on file

University of Massachusetts Amherst notified individuals on July 20, 2026, regarding a data security event involving names, addresses, Social Security numbers, and bank account/routing numbers. The university offered two years of Experian IdentityWorks. The incident status is contained, with no specific discovery or occurrence dates provided in the notice.

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Incident timeline — partial

? — ?

Breach window unknown

Jul 23, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: University of Massachusetts Amherst
norm: university of massachusetts amherst
Domain: umass.edu
Industry: Education

Name: University of Massachusetts Amherst
norm: university of massachusetts amherst
Domain: umass.edu
Industry: Education

Discovered: —
Materiality determined: —
Notification sent: Jul 20, 2026
Affected individuals: 1state-resident count only
Data types: Financial accountIdentity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Offering a complimentary two-year membership to 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/2026-1207-university-of-massachusetts-amherst/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 23, 2026
Raw hash: e4c95814f0d142eac704c0378ce998ddb4bd340488d887b4753d38ef0a15a83c

Reporting entityUniversity of Massachusetts Amherst

Victim entityUniversity of Massachusetts Amherst

IncidentUnauthorized Access

Stated responseOffering a complimentary two-year membership to Experian’s IdentityWorks

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov