DisclosureLens
FEDERALUnknownFinancial ServicesFinanceCustomer Data InvolvedLowResolved

TriCo Bancshares

bd_904b491262c0d6c1 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Mar 2, 2026

To disclose

—

Affected

Not disclosed

Confidence

53%
Full breach record for TriCo Bancshares →

TriCo Bancshares' 2025 10-K Item 1C references a February 2023 criminal cyberattack that caused temporary interruption of company systems, disclosure of certain confidential information, and resulted in litigation and governmental inquiries, the consequences of which may be material. No specific attack vector, affected-individual count, or data types are enumerated in the Item 1C disclosure.

Incident timeline

Feb 1, 2023

Begins

Mar 2, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.No incident reportedView incident

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 filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statementThis record

Unlocks: materiality, stated response, full audit trail. Ceiling removed.