PhysicalFinancial ServicesFinanceSkimmerCustomer Data InvolvedFinancial accountFinancial credentialsIdentity (basic)LowContained

Bank of the West

bd_8216e60f64515f8a · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 20, 2019

Filed

Apr 5, 2019

To disclose

11 weeks

Affected

Not disclosed

Confidence

65%

Full breach record for Bank of the West →10 incidents on file

Bank of the West notified customers that an ATM skimming device was installed on a Campbell Branch ATM between December 3 and December 22, 2018. The device captured debit card numbers, PINs, names, expiration dates, and security codes. The bank discovered the incident on January 20, 2019, contacted law enforcement, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

California clockDiscovered Jan 20, 2019 → Notified Mar 29, 201968d ✗ CA 60-day late11 weeks discovery → filing

Incident timeline

undetected · 48 days

discovery → filing · 11 weeks / 75 days

Dec 3, 2018

Begins

Jan 20, 2019

Discovered

Apr 5, 2019

Filed

vs. sector median

+1 wks slower

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

Name: Bank of the West
norm: bank of the west

Name: Bank of the West
norm: bank of the west
Industry: Financial Servicesllm

Discovered: Jan 20, 2019
Breach occurred: Dec 3, 2018 – Dec 22, 2018
Undetected for: 48 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 29, 2019
Affected individuals: Not disclosed
Data types: Financial accountFinancial credentialsIdentity (basic)
Attack vector: Unknown
MITRE ATT&CK: T1052 Exfiltration Over Physical Medium
Threat actor: ExternalFinancial
Regulator citations: Contacted law enforcement

During the incident: Contacted law enforcement
Reviewed ATM network
Took steps to stop the continued fraudulent use of stolen card information
Actively monitoring account(s) for suspicious activity
Blocked accounts with suspicious or fraudulent activity
Sent new debit card with instructions for creating a new PIN
Offering a year of free credit monitoring and identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(75 days from discovery to filing)
Compliance flags: CA 60-day late · 68d
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: Jan 20, 2019
→ Notified: Mar 29, 2019
68d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jan 20, 2019 → Notified: Mar 29, 2019	68d	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/sb24-146057
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 5, 2019
Raw hash: 6ab7ff7a4e4ae5a0f1b2d2ce45a0e826daf800e808cf8c5682ccef982e5b6ed5

Reporting entityBank of the West

Victim entityBank of the West

Incidentdiscovered Jan 20, 2019

Stated responseContacted law enforcement

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov