secwatch.observer — SEC 8-K summary
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Issuer:     TRICO BANCSHARES / (TCBK)
CIK:        0000356171
Form:       8-K
Filed at:   2023-02-14T23:59:59+00:00
Accession:  0000356171-23-000006
Event type: cyber
Sentiment:  negative
Materiality: 0.60
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

TriCo Bancshares discloses cybersecurity incident; internal systems taken offline
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- Detected unusual activity and shut down networked systems on Feb 14.
- Internal email, telephones, and customer call center offline; branches open.
- Customer accounts on separate system; no evidence of account access.
- Investigation ongoing; most business services operating normally.
- Tri Counties Bank ATMs unavailable; other ATM transactions normal.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/356171/000035617123000006/0000356171-23-000006-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/356171/000035617123000006/tcbk-20230214.htm
  HTML page:      https://secwatch.observer/filing/0000356171-23-000006

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