Welltok, Inc. reported a cybersecurity incident involving the MOVEit Transfer server for Anthem Blue Cross Blue Shield. An unknown actor exploited software vulnerabilities to access the server on May 30, 2023, and exfiltrated data. Welltok discovered the breach on August 11, 2023, after a third-party investigation. Approximately 4 New Hampshire residents were notified on January 23, 2024. Data types included identity and government identifiers. Welltok provided credit monitoring via Experian.
Affected (this filing): 4