HackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

UNITED UNDERWRITERS, INC.

bd_5b499645b15e50a6 · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Sep 1, 2026

To disclose

—

Affected

15state residents only

Confidence

70%

Full breach record for UNITED UNDERWRITERS, INC. →2 incidents on file

United Underwriters Insurance notified Massachusetts residents of a security incident where an unauthorized actor downloaded files containing personal information on May 1, 2026. The company identified suspicious activity earlier in the year, stopped it, and conducted a forensic investigation. Affected individuals are offered 24 months of credit monitoring. The specific types of personal data affected were redacted in the notice.

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Incident timeline

May 1, 2026

Begins

Sep 1, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed15 affectedView incident

Name: UNITED UNDERWRITERS, INC.
norm: united underwriters

Name: UNITED UNDERWRITERS, INC.
norm: united underwriters
Industry: Financial Servicesllm

Discovered: —
Breach occurred: May 1, 2026
Materiality determined: —
Notification sent: Sep 21, 2026
Affected individuals: 15state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unknown
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External

During the incident: Initiated incident response processes
Stopped the suspicious activity
Initiated a forensic investigation supported by third-party forensic experts
Offering twenty-four (24) months of complimentary credit monitoring and identity restoration services through Cyberscout
Changes made: Enhancing security and monitoring controls
Continuing to strengthen IT security and data privacy controls
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/2026-1597-united-underwriters/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2026
Raw hash: 0bffc5dbe2115a436e0aa00f10bcce0460ac16cb391daef6d905acfd400ae7ce

Reporting entityUNITED UNDERWRITERS, INC.

Victim entityUNITED UNDERWRITERS, INC.

IncidentUnknown

Stated responseInitiated incident response processes

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov