Social EngineeringGovernmentHealthcareGovernmentPhishingCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

County of Los Angeles

bd_22dc50bf9a61f922 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 13, 2016

Filed

Dec 16, 2016

To disclose

31 weeks

Affected

108scope not determined

Confidence

66%

Full breach record for County of Los Angeles →5 incidents on file

On May 13, 2016, the County of Los Angeles experienced a phishing email attack affecting approximately 108 employee email accounts. The attack potentially compromised personally identifiable information (PII) and protected health information (PHI) of service recipients, including names, SSNs, driver's license numbers, payment card info, bank account info, and medical records. The County notified law enforcement and relevant regulators (CDPH, CA AG, HHS OCR). Free identity monitoring was offered to affected individuals.

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Incident timeline

discovery → filing · 31 weeks / 217 days

May 13, 2016

Begins

May 13, 2016

Discovered

Dec 16, 2016

Filed

vs. sector median

+20 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed108 affectedView incident

Name: County of Los Angeles
norm: county of los angeles

Name: County of Los Angeles
norm: county of los angeles
Industry: GovernmentllmHealthcarellm

Discovered: May 13, 2016
Breach occurred: May 13, 2016
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 108scope not determined
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Regulator citations: Notified the California Department of Public HealthNotified the State Attorney General’s OfficeNotified the U.S. Department of Health & Human Services’ Office for Civil Rights
Initial access: phishing_link

During the incident: Notified law enforcement
Initiated an administrative review
Implemented additional controls to minimize the risk of future phishing attacks
Enhanced training to identify and respond to phishing attacks
Notified the California Department of Public Health
Notified the State Attorney General’s Office
Notified the U.S. Department of Health & Human Services’ Office for Civil Rights
Offering free identity monitoring for one year
Changes made: Implemented numerous enhancements to reduce exposure to similar email attacks
Implemented additional controls to minimize the risk of future phishing attacks against County email accounts
Enhanced training to identify and respond to phishing attacks as part of the County’s ongoing cyber-security awareness campaign
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(217 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/sb24-65499
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 16, 2016
Raw hash: bd0de2a8e40c0d32df2a07d99e0a582b9b865f4df7344750e86ba6c1ae8e196d

Reporting entityCounty of Los Angeles

Victim entityCounty of Los Angeles

Incidentdiscovered May 13, 2016

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov