Columbia Bank Files Breach Report in Washington State

Columbia Bank has submitted a data breach notification to authorities in Washington State, confirming an incident that could involve personal information.

The official filing, dated April 17, 2026, indicates that the specific types of data compromised during this event were not detailed in the public report. Similarly, the exact number of individuals potentially affected remains unspecified, as does the precise date when the breach initially occurred.

Columbia Bank has noted in its filing that an investigation into the breach is ongoing. The company is working to understand the full extent of the incident and what information may have been accessed.

Individuals who receive direct notification from Columbia Bank should carefully review the communication for specific instructions. It is generally recommended to remain vigilant for unusual activity across personal accounts and to consider monitoring financial statements and credit reports.

This information is based on public disclosures made by Columbia Bank to state regulators. For further details, individuals should refer to any official notices they receive directly from the bank.