HackingGovernmentGovernmentStolen CredentialsEmployee Data InvolvedDelayed DiscoveryIdentity (basic)PIILowContained

Contra Costa County Employees' Retirement Association

bd_e4a3e2642766be5d · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 11, 2022

Filed

Apr 15, 2022

To disclose

5 weeks

Affected

Not disclosed

Confidence

66%

Full breach record for Contra Costa County Employees' Retirement Association →

Contra Costa County notified residents of unauthorized access to employee email accounts between June 24, 2021, and August 12, 2021. The incident was discovered on March 11, 2022. Personal information, including names and variable data, may have been accessed. The County secured accounts, engaged a cybersecurity firm, implemented additional safeguards, and offered identity protection services.

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Incident timeline

undetected · 260 days

discovery → filing · 5 weeks / 35 days

Jun 24, 2021

Begins

Mar 11, 2022

Discovered

Apr 15, 2022

Filed

vs. sector median

6 wks faster

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

Name: Contra Costa County Employees' Retirement Association
norm: contra costa county employees retirement

Name: Contra Costa County Employees' Retirement Association
norm: contra costa county employees retirement
Industry: Governmentllm

Discovered: Mar 11, 2022
Breach occurred: Jun 24, 2021 – Aug 12, 2021
Undetected for: 260 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External

During the incident: Immediately took steps to secure the email accounts
Began the investigation with the assistance of a cybersecurity firm
Implemented additional safeguards and technical security measures to further enhance the security of our computer systems
Providing additional security awareness training for our staff
Offering a complimentary membership to Experian’s IdentityWorks Credit 3B
Changes made: Implemented additional safeguards and technical security measures to further enhance the security of our computer systems
Providing additional security awareness training for our staff
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(35 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://oag.ca.gov/ecrime/databreach/reports/sb24-552642
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 15, 2022
Raw hash: f2f6bfd354024ee5be7e5249f2ac816e9f00612b6d172db4542dddd6f3193103

Reporting entityContra Costa County Employees' Retirement Association

Victim entityContra Costa County Employees' Retirement Association

Incidentdiscovered Mar 11, 2022

Stated responseImmediately took steps to secure the email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov