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.
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.
Connected intelligence
Signal brief
Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.
Organization
- Published
- Nov 16, 2025
- Updated
- Jun 25, 2026
- Confidence
- Medium
- Evidence
- 1 source
Structured assessment
Signal analysis
This 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.
Threat source
The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.
- Source type: possible insider or internal misuse
- Source type: supplier or third-party involvement
Business impact
- Impact area
- Confidentiality, Availability
- Likely asset
- User or customer data, Server or cloud data store
Mentioned entities
Quick context
Questions about this signal
What happened in this signal?
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.
When was this signal reported?
Shadow Tier lists Nov 16, 2025 as the signal date.
Which organization is connected to this signal?
Sedgwick is the organization connected to this public signal.
Explore SedgwickWhich attack pattern is relevant?
This signal is connected to current ransomware incidents based on its reported incident context.
Explore current ransomware incidentsWhich impact area is relevant?
This signal is connected to data exposure and breach intelligence based on its reported consequences.
Explore data exposure and breach intelligenceRelated signals
Compare shared topics, actors and incident patterns before opening the full signal.
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