Plains Commerce Bank

Plains Commerce Bank notified California AG on May 27, 2021 of a data breach, which occurred on Jan 15, 2021. Data exposed: Social Security number, Financial / bank account, Postal address, Name.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Plains Commerce Bank
Source: California AG · source record
Date reported: May 27, 2021
Date(s) of breach: Thursday, December 10, 2020Friday, January 15, 2021
Residents affected: Not published by this source
Data exposed: Social Security number Financial / bank account Postal address Name
Notice letter: Sample notice (PDF)
Discovered: Jan 20, 2021, as stated in the letter
"Working with third-party forensic investigators, on January 20, 2021, we confirmed that an unknown perpetrator may have gained access to ten employee email accounts between December 10, 2020 and January 15, 2021."
Days to notice: 127 days from discovery (Jan 20, 2021) to the California record (May 27, 2021). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter: 12 months of credit or identity monitoring through Experian
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-10-30 16:06 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

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