Social EngineeringGovernmentGovernmentPhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)LowContained

Lavaca County, Texas

bd_77f4f5c07f2edbb1 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 20, 2023

Filed

Dec 29, 2023

To disclose

10 weeks

Affected

1state residents only

Confidence

66%

Full breach record for Lavaca County, Texas →

Lavaca County, Texas notified the NH AG of a data security incident where one employee email account was accessed without authorization following suspicious activity detected on Oct 20, 2023. The incident involved personal information of one NH resident. The County engaged cybersecurity experts, reset passwords, and offered credit monitoring services.

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Incident timeline

discovery → filing · 10 weeks / 70 days

Oct 20, 2023

Discovered

Nov 21, 2023

Scope determined

Dec 29, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Lavaca County, Texas
norm: lavaca county texas
Domain: co.lavaca.tx.us

Name: Lavaca County, Texas
norm: lavaca county texas
Domain: co.lavaca.tx.us
Industry: Governmentllm

Discovered: Oct 20, 2023
Materiality determined: Nov 21, 2023
Notification sent: Dec 20, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General
Initial access: phishing_link

During the incident: Performed a password reset
Engaging a leading cybersecurity firm to assist with an investigation
Conducted a comprehensive review of the affected data
Offering individuals complimentary credit monitoring and identity protection services through IDX
Implemented additional technical security measures throughout its email environment
Changes made: Implemented additional technical security measures throughout its email environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(70 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/lavaca-county-texas-20231229.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 29, 2023
Raw hash: 63691dc319b75001a875e14a4bf2cb2a6b01e19010ebb6fba1b8abe6baba2f04

Reporting entityLavaca County, Texas

Victim entityLavaca County, Texas

Incidentdiscovered Oct 20, 2023

Stated responsePerformed a password reset

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov