Susan Morse reports:
The Centers for Medicare and Medicaid Services and Wisconsin Physicians Service Insurance Corporation are mailing written notifications to 946,801 people whose protected health information or other personally identifiable information may have been compromised in a cyber breach.
A security vulnerability was found in MOVEit software, a third-party application used in the transfer of files to CMS. The app was developed by Progress Software and used by Wisconsin Physicians Service Insurance Corporation.
Progress Software discovered and disclosed the vulnerability in the MOVEit software to the public on May 31, 2023. It released a software patch that WPS applied.
Read more at Healthcare Finance.
Yes, this is the same MOVEit breach by Clop threat actors that was extensively reported last year. So why wasn’t it disclosed or reported last year like other entities? According to the reporting on this:
In the initial investigation, WPS did not observe evidence that an unauthorized party obtained copies of files that were within the WPS MOVEit application. But this May, acting on new information, WPS conducted an additional review with the assistance of a third-party cybersecurity firm.
The CMS’s statement with a sample of the notification letter can be found at CMS.gov.