UnknownFinancial ServicesFinanceCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Arbella Mutual Insurance Company

bd_40f24a685a57ca97 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Mar 19, 2026

To disclose

—

Affected

Not disclosed

Confidence

67%

Full breach record for Arbella Mutual Insurance Company →5 incidents on file

Arbella Mutual Insurance Company notified Massachusetts residents of a security incident involving potential unauthorized access to personal information, including names, addresses, phone numbers, and driver's license numbers. The company contained the incident, reported it to law enforcement, and is offering 24 months of Experian IdentityWorks. Specific details regarding the cause or timeline are withheld due to Massachusetts law.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Mar 19, 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: Arbella Mutual Insurance Company
norm: arbella mutual insurance

Name: Arbella Mutual Insurance Company
norm: arbella mutual insurance
Industry: Financial Servicesllm

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

During the incident: Took immediate steps to address and contain the matter
Commenced an investigation to determine what happened
Reported this matter to law enforcement
Changes made: Offering complimentary access to Experian IdentityWorks for 24 months
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/2026-428-arbella-mutual-insurance-company/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 19, 2026
Raw hash: 202b1a2145e9fc33859e9d1cddc08427b35c71cc566988d219eca09db61ca6bc

Reporting entityArbella Mutual Insurance Company

Victim entityArbella Mutual Insurance Company

IncidentUnknown

Stated responseTook immediate steps to address and contain the matter

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov