Gerber Life Insurance Company notified the California AG of a data breach involving its service provider, MESVision. An unauthorized individual exploited a vulnerability in MESVision's MOVEit server to exfiltrate personal information (including SSNs and DOBs) of vision benefit plan enrollees on May 28 and May 31, 2023. MESVision discovered the incident on August 23, 2023. The server was taken offline, and a cybersecurity firm was engaged. Affected individuals are offered credit monitoring.