Case file: Bank of the West
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 9, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Nov 10, 2021 to Apr 18, 2022
- Discovered
- Nov 10, 2021, as stated in the California letter
- State and federal records
- 1 filing, Jun 23, 2022
- Residents counted
- No state publishes a resident count for this incident
- Everyone affected
- No filing gives a total
- Information exposed
- Financial / bank account, Postal address
- Offered to those affected
- credit or identity monitoring through Experian (term not stated in the letter we read)
- Third party named
- No
- Days to notice
- Past the statutory period in California, counted from discovery to the state's first record
- Prior incidents
- 4 earlier incidents on record for this organization
The letter: "On November 10, 2021, our security teams identified instances of unauthorized account withdrawal attempts at several ATMs."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| California California AG | Jun 23, 2022 | Not published | 225 days, statute 30 days, over | Letter Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Notice timing, state by state
- 225 days from discovery (Nov 10, 2021) to the California record (Jun 23, 2022). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
The statutes
- California: 30 days to notify residents from discovery or notification of the breach, Cal. Civ. Code § 1798.82. Sample notice to the Attorney General when more than 500 Californians are notified, within 15 days of the consumer notice (effective 2026).
Prior incidents by Bank of the West
| Records | Breach window | Filed with | People |
|---|---|---|---|
| Apr 5, 2019 | Dec 22, 2018 | California | n/a |
| Aug 20, 2018 | Mar 2, 2018 | California | n/a |
| May 24, 2017 | Apr 9, 2017 | California | n/a |
| Feb 5, 2014 to Jul 16, 2014 | Not stated in the filings | California, California | n/a |
Filings more than six months apart are shown as separate incidents.
Sources and method
Records as published by California AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 1 letter read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.