AccidentalGovernmentGovernmentMisdeliveryCustomer Data InvolvedIdentity (basic)Financial accountLowContained

Town of Canterbury, NH

bd_6af968022bfda0c8 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 20, 2026

Filed

Jun 11, 2026

To disclose

22 days

Affected

2state residents only

Confidence

66%

Full breach record for Town of Canterbury, NH →

The Town of Canterbury, NH, notified the NH Attorney General of an incident where a Town employee inadvertently uploaded sensitive zoning application materials to the Town's website and emailed them to the Historic District Commission. The materials included residents' names and bank account/routing numbers. The Town discovered the error on May 20, 2026, and removed the files. Two New Hampshire residents were affected. Notifications were sent to residents on June 8, 2026.

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Incident timeline

undetected · 14 days

discovery → filing · 22 days

May 6, 2026

Begins

May 20, 2026

Discovered

Jun 11, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: Town of Canterbury, NH
norm: town of canterbury nh

Name: Town of Canterbury, NH
norm: town of canterbury nh
Industry: Governmentllm

Discovered: May 20, 2026
Breach occurred: May 6, 2026 – May 18, 2026
Undetected for: 14 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 8, 2026
Affected individuals: 2state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Misconfiguration
MITRE ATT&CK: T1567 Exploit Public-Facing Application
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau

During the incident: Commenced a prompt and thorough investigation
Removed files from the Town's website on or about May 20, 2026
Removed files from the Town's email servers on or about May 22, 2026
Provided potentially affected residents with written notification commencing on or about June 8, 2026
Advised potentially affected residents about the process for placing fraud alerts and/or security freezes on their credit files
Provided contact information for consumer reporting agencies and the Federal Trade Commission
Changes made: Continually evaluates and modifies its practices to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 days(22 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/town-canterbury-nh-20260611.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 11, 2026
Raw hash: 6d06f6a0dc89473cd5524b274458e4c3f4e3556d9bb981ecebc865b490d99823

Reporting entityTown of Canterbury, NH

Victim entityTown of Canterbury, NH

Incidentdiscovered May 20, 2026

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov