HackingGovernmentTransportation & LogisticsGovernmentCustomer Data InvolvedPIIIdentity (basic)LowContained

Central Contra Costa Transit Authority

bd_8ba961c19877df50 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 5, 2024

Filed

Jul 15, 2024

To disclose

10 weeks

Affected

1state residents only

Linked

4 filings

Confidence

66%

Full breach record for Central Contra Costa Transit Authority →

Central Contra Costa Transit Authority (CCCTA) notified the New Hampshire AG of a cybersecurity incident discovered on May 5, 2024. An unauthorized actor accessed network files. One NH resident was affected. CCCTA engaged forensic investigators, secured the network, and offered credit monitoring. No evidence of misuse was found.

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Incident timeline

discovery → filing · 10 weeks / 71 days

May 5, 2024

Discovered

Jun 7, 2024

Scope determined

Jul 15, 2024

Filed

vs. sector median

1 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_154a51d1ebd68c522024-07-15Verified
Montana State AGbd_5fde03fc48d06fdb2024-07-15Candidate
California State AGbd_ec1a71ef85291e332024-07-15Verified

Name: Central Contra Costa Transit Authority
norm: central contra costa transit authority

Name: Central Contra Costa Transit Authority
norm: central contra costa transit authority
Industry: GovernmentllmTransportation & Logisticsllm

Discovered: May 5, 2024
Materiality determined: Jun 7, 2024
Notification sent: Jul 15, 2024
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General
Initial access: valid_credentials

During the incident: Engaged a specialized cybersecurity firm to investigate the nature and scope of the incident
Took steps to secure its network
Informed our law firm
Began identifying the potentially impacted individuals in preparation for notice
Offered complimentary credit monitoring and identity theft restoration services
Changes made: Enhance the security of its systems moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(71 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGJul 15 · first

Montana State AGJul 15 · first

California State AGJul 15 · first

New Hampshire State AGJul 15 · first · this page

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/central-contra-costa-transit-authority-20240715.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 15, 2024
Raw hash: c31ed6de76895155493494fc63270b61c9ba8e4868692a82c8accf6cbb5927ad

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCentral Contra Costa Transit Authority

Victim entityCentral Contra Costa Transit Authority

Incidentdiscovered May 5, 2024

Stated responseEngaged a specialized cybersecurity firm to investigate the nature and scope of the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov