CB Financial flags customer data leak tied to unauthorized AI software use

• CB Financial Services disclosed a material cybersecurity incident tied to unauthorized use of an artificial intelligence-based software application to handle non-public customer information.
• Community Bank became aware of incident on May 5; materiality determination made May 7 due to volume and sensitivity of data involved.
• Bank secured information at issue; internal investigation underway with external cybersecurity advisers.
• Company reported no disruption to operations, customer access, payment systems, or core IT infrastructure.
• Incident has not had, and is not expected to have, a material impact on consolidated financial condition or results of operations.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. CB Financial Services Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001605301-26-000021), on May 11, 2026, and is solely responsible for the information contained therein.