HackingGovernmentGovernmentData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

City of Marina, California

bd_0ed629d8539a72a3 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 20, 2025

Filed

Jan 28, 2026

To disclose

23 weeks

Affected

Not disclosed

Confidence

65%

Full breach record for City of Marina, California →

The City of Marina, California, experienced unauthorized access to its computer network between August 19 and August 20, 2025. An unauthorized person gained access to systems and acquired copies of files containing personal information, including names and other data elements. The City identified the activity on August 20, 2025, and engaged forensic investigators. On December 29, 2025, the City confirmed that specific individuals' data was involved and sent notifications. The City is offering one year of complimentary identity monitoring services through Experian IdentityWorks.

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California clockDiscovered Aug 20, 2025 → Notified Dec 29, 2025131d ✗ CA 60-day late23 weeks discovery → filing

Incident timeline

undetected · 1 days

discovery → filing · 23 weeks / 161 days

Aug 19, 2025

Begins

Aug 20, 2025

Discovered

Jan 28, 2026

Filed

vs. sector median

+12 wks slower

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

Name: City of Marina, California
norm: city of marina california

Name: City of Marina, California
norm: city of marina california
Industry: Governmentllm

Discovered: Aug 20, 2025
Breach occurred: Aug 19, 2025 – Aug 20, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Dec 29, 2025
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Reported the incident to law enforcement

During the incident: Took steps to further secure our network
Began a forensic investigation
Reported the incident to law enforcement
Offering a complimentary one-year membership to Experian IdentityWorks
Changes made: Reviewing our safeguards and the security of our systems to help prevent a similar incident in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(161 days from discovery to filing)
Compliance flags: CA 60-day late · 131d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Aug 20, 2025
→ Notified: Dec 29, 2025
131d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Aug 20, 2025 → Notified: Dec 29, 2025	131d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

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/sb24-617777
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 28, 2026
Raw hash: add4d5cc47b1736873522ec29e9e708b01922c8983e26581c64bb6d612cc6dbc

Reporting entityCity of Marina, California

Victim entityCity of Marina, California

Incidentdiscovered Aug 20, 2025

Stated responseTook steps to further secure our network

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov