HackingGovernmentGovernmentCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)MediumContained

City of New Britain

bd_ad978091d0915796 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 28, 2026

Filed

Jul 30, 2026

To disclose

26 weeks

Affected

7state residents only

Confidence

66%

Full breach record for City of New Britain →

The City of New Britain discovered unusual network activity on January 28, 2026, indicating unauthorized access by an external actor. The incident potentially affected 7 New Hampshire residents, exposing names, Social Security numbers, and health insurance information. The City engaged forensic investigators, secured systems, notified law enforcement, and is providing credit monitoring services to affected individuals.

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Incident timeline

discovery → filing · 26 weeks / 183 days

Jan 28, 2026

Begins

Jan 28, 2026

Discovered

Jul 30, 2026

Filed

vs. sector median

+15 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed7 affectedView incident

Name: City of New Britain
norm: city of new britain

Name: City of New Britain
norm: city of new britain
Industry: Governmentllm

Discovered: Jan 28, 2026
Breach occurred: Jan 28, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 30, 2026
Affected individuals: 7state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Attack vector: Unknown
Threat actor: External

During the incident: Took steps to secure City systems
Engaged a third-party team of forensic investigators
Notified law enforcement
Offering the potentially impacted individuals complimentary credit monitoring and identity protection services
Changes made: Implemented additional technical safeguards to further enhance the security of information in our possession and to prevent similar incidents from happening in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 26 weeks(183 days from discovery to filing)
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://mm.nh.gov/files/uploads/doj/remote-docs/city-new-britain-ct-20260730.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 30, 2026
Raw hash: 38c48e78a1924be235aeaa884355db4b11936bd3c31e12743f50495a4242df66

Reporting entityCity of New Britain

Victim entityCity of New Britain

Incidentdiscovered Jan 28, 2026

Stated responseTook steps to secure City systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov