CB Financial Services discloses a material cybersecurity incident

What the filing says

On May 5, 2026, Community Bank (the "Bank"), the wholly-owned subsidiary of CB Financial Services, Inc. (the "Company"), became aware of an internal incident involving the handling of certain non public customer information using an unauthorized artificial intelligence-based software application. Upon discovery, the Bank promptly took steps to secure the information at issue and initiated an internal investigation with the assistance of external cybersecurity advisors. The investigation into the incident, including the scope and root cause, remains ongoing.