First National Bankers Bankshares

First National Bankers Bankshares, also known as First National Bankers Bank or FNBB, is a financial institution headquartered in the United States of America. The organisation primarily provides check clearing services to other banks that rely on its processing capabilities. In addition to check clearing, FNBB offers correspondent banking functions that support the operational needs of its customer banks. Its services are delivered through secure file‑sharing platforms, notably the MOVEit Transfer application, which it uses to transmit scanned check images and related account data. By acting as an intermediary, FNBB enables community banks to outsource payment processing while maintaining their own core banking systems. The bank’s role is focused on facilitating the movement of funds and information between financial institutions rather than retail lending.

In May 2023 FNBB experienced two related security incidents stemming from a vulnerability in the MOVEit Transfer software. On May 1, 2023 the bank was identified as part of a mass‑exploitation campaign that targeted the MOVEit Transfer file‑sharing application, with the Russia‑linked Clop ransomware gang claiming responsibility and listing FNBB among its victims. The gang asserted that it had exfiltrated a significant amount of data and attempted to extort the organization, although no specific stolen data from FNBB was confirmed as published. A second incident on May 27, 2023 involved an unauthorized party exploiting the same MOVEit vulnerability to access FNBB’s server, potentially compromising files containing scanned check images and associated checking account numbers. The breach was limited to FNBB’s own environment and did not directly affect the systems of the customer banks that use its check clearing services. These events highlighted the bank’s reliance on third‑party file‑sharing tools and the associated risks to the sensitive payment data it handles.