MalwareFinancial ServicesFinanceRansomwareData EncryptedCustomer Data InvolvedIdentity (basic)Government IDFinancialMediumContained

Coast Financial Services

bd_8413f9729f647ad4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 6, 2020

Filed

Sep 1, 2020

To disclose

17 weeks

Affected

517state residents only

Confidence

66%

Full breach record for Coast Financial Services →

Coast Financial Services discovered on May 6, 2020, that two servers had been encrypted and rendered inaccessible. An investigation determined that an unauthorized individual accessed files containing tax-related documents, including names, mailing addresses, and Social Security numbers. Approximately 517 California residents were affected. The company engaged a digital forensics firm, contained the incident, reported it to the FBI, and offered identity theft protection services.

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Incident timeline

discovery → filing · 17 weeks / 118 days

May 6, 2020

Begins

May 6, 2020

Discovered

Sep 1, 2020

Filed

vs. sector median

+9 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed517 affectedView incident

Name: Coast Financial Services
norm: coast financial services

Name: Coast Financial Services
norm: coast financial
Industry: Financial Servicesllm

Discovered: May 6, 2020
Breach occurred: May 6, 2020
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 1, 2020
Affected individuals: 517state-resident count only
Data types: Identity (basic)Government IDFinancial
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified California Attorney GeneralReported the incident to the Federal Bureau of Investigation

During the incident: Engaged a digital forensics firm to investigate the cause and scope of the incident
Contained the incident and secured network systems
Reported the incident to the Federal Bureau of Investigation
Offering identity theft protection services through ID Experts
Changes made: Implemented additional safeguards to improve data security on their web server infrastructure
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(118 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/sb24-193641
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2020
Raw hash: 10635f4c195100d5e7311f1984b2197c0fa4c96140a5cd1b4553c9029f514d59

Reporting entityCoast Financial Services

Victim entityCoast Financial Services

Incidentdiscovered May 6, 2020

Stated responseEngaged a digital forensics firm to investigate the cause and scope of the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov