Managed Care Advisors/Sedgwick Government Solutions (MCA/SGS) suffers ransomware attack affecting WTC Health Program data
Managed Care Advisors/Sedgwick Government Solutions (MCA/SGS), a federal contractor managing workers' compensation and managed care for U.S. government agencies, experienced a ransomware attack. An unauthorized third party accessed a corporate Secure File Transfer Protocol (SFTP) server on November 16, 2025, and encrypted files. The compromised server stored files from the Nationwide Provider Network for the World Trade Center Health Program. The exposed information includes first and last names, home addresses, Social Security numbers, dates of birth, medical record images, and completed WTC Health Program forms.
Signal context
First seen: Nov 16, 2025
Last updated: Jun 25, 2026
Status: Public signal
Key points
- Unauthorized access to a corporate SFTP server on November 16, 2025.
- Ransomware deployed, encrypting files.
- Compromised data includes medical records, Social Security numbers, and personal health information of WTC Health Program participants.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Health Care and Social Assistance
Likely country: Location not provided
The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.
- Source type: outside the affected organization
- Source type: possible insider or internal misuse
- Source type: supplier or third-party involvement
Impact area: Confidentiality, Availability
Likely asset: User or customer data, Server or cloud data store
- 6 signals in the same sector
- 100 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
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