HackingGovernmentGovernmentData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)Health (basic)MediumContained

City of Nassau Bay, Texas

bd_96688fc71e5c3699 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 23, 2023

Filed

Nov 22, 2023

To disclose

26 weeks

Affected

3state residents only

Confidence

66%

The City of Nassau Bay, Texas notified the NH Attorney General of an incident where unauthorized individuals accessed its network on May 23, 2023, and removed files potentially containing personal information of three New Hampshire residents. The City contained the threat, engaged forensic investigators, and notified law enforcement. Affected data included Social Security numbers and medical information. The City is offering 12 months of credit monitoring.

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Incident timeline

discovery → filing · 26 weeks / 183 days

May 23, 2023

Begins

May 23, 2023

Discovered

Nov 22, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed3 affectedView incident

Name: City of Nassau Bay, Texas
norm: city of nassau bay texas

Name: City of Nassau Bay, Texas
norm: city of nassau bay texas
Domain: nassaubay.com
Industry: Governmentllm

Discovered: May 23, 2023
Breach occurred: May 23, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 22, 2023
Affected individuals: 3state-resident count only
Data types: Government IDIdentity (basic)Health (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General

During the incident: Contained the threat
Commenced a prompt and thorough investigation
Notified law enforcement
Working closely with external cybersecurity professionals
Providing affected residents with written notification
Offering complimentary 12-month memberships with a credit monitoring service
Advising affected residents about the process for placing fraud alerts and/or security freezes
Providing contact information for consumer reporting agencies and the Federal Trade Commission
Providing steps to take to safeguard against medical identity theft
Changes made: Continually evaluates and modifies its practices to enhance the security and privacy of the personal information it maintains
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-nassau-bay-texas-20231122.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 22, 2023
Raw hash: b16785a818b2cb5ac2905d6e9abc1113f7743e696ae3a4696002b3b09eee1a2d

Reporting entityCity of Nassau Bay, Texas

Victim entityCity of Nassau Bay, Texas

Incidentdiscovered May 23, 2023

Stated responseContained the threat

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov