U.S. government services contracting giant Maximus has confirmed that hackers exploiting a vulnerability in MOVEit Transfer accessed the protected health information of as many as 11 million individuals. Virginia-based Maximus contracts with federal, state, and local governments to manage and administer government-sponsored programs, such as Medicaid, Medicare, healthcare reform, and welfare-to-work. In an 8-K filing on Wednesday, Maximus confirmed that the personal information of a “significant number” of individuals was accessed by hackers exploiting a zero-day vulnerability in MOVEit Transfer, which the organization uses to “share data with government customers pertaining to individuals who participate in various government programs.”