MalwareGovernmentGovernmentRansomwareData EncryptedData ExfiltratedCustomer Data InvolvedIdentity (basic)LowContained

City of Oakland

bd_1cdf1c10a4016a0d · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 8, 2023

Filed

Mar 30, 2023

To disclose

7 weeks

Affected

Not disclosed

Confidence

66%

Full breach record for City of Oakland →3 incidents on file

The City of Oakland experienced a ransomware incident on February 8, 2023, involving malware that encrypted systems. An unauthorized actor accessed and exfiltrated files between February 6 and February 9, 2023. Affected data includes names and addresses. The City secured its network, engaged forensic investigators, and is offering credit monitoring.

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Incident timeline

undetected · 2 days

discovery → filing · 7 weeks / 50 days

Feb 6, 2023

Begins

Feb 8, 2023

Discovered

Mar 30, 2023

Filed

vs. sector median

4 wks faster

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

Name: City of Oakland
norm: city of oakland

Name: City of Oakland
norm: city of oakland
Industry: Governmentllm

Discovered: Feb 8, 2023
Breach occurred: Feb 6, 2023 – Feb 9, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: External

During the incident: Took steps to secure our network
Alerted law enforcement
Launched an investigation
Engaged third-party cybersecurity professionals to assist in the investigation
Changes made: Implemented additional measures to enhance existing cybersecurity protocols
Offering a complimentary one-year membership to Experian IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(50 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/sb24-564950
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 30, 2023
Raw hash: 3a7b5377525535461d87067d0f2204b379747fd10eb8364f357412d397921054

Reporting entityCity of Oakland

Victim entityCity of Oakland

Incidentdiscovered Feb 8, 2023

Stated responseTook steps to secure our network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov