Signature Healthcare Reports Cybersecurity Incident, Diverts Ambulances and Cancels Chemotherapy
Summary
Signature Healthcare says suspicious network activity affected some information systems. The hospital is investigating and using downtime procedures; ambulance traffic is diverted, and chemotherapy infusions are canceled for April 7.
Key points
- Signature Healthcare said it identified suspicious activity in part of its network on April 6 and activated incident response procedures.
- The health system says some information systems were affected and it is working with outside resources to investigate and restore operations.
- Inpatient and walk-in emergency services remain open using downtime procedures.
- Ambulance traffic is being diverted while the incident response continues.
- Surgeries and endoscopy procedures are continuing as scheduled.
- Chemotherapy infusions were canceled for April 7; ambulatory practices and urgent care remain open, with possible delays.
Article Details
- Victim Organization
- Signature Healthcare and Signature Healthcare Brockton Hospital
- Victim Domain
- signature-healthcare.org
- Incident Type
- Cybersecurity incident affecting certain information systems; suspicious activity was identified in part of the network.
- Disclosure Date
- 2026-04-06
- Operational Impact
- The health system activated incident response and downtime procedures. Inpatient and walk-in emergency services remained open, while ambulance traffic was diverted. Chemotherapy infusions were canceled for April 7, 2026. Surgeries and endoscopy continued; clinics and urgent care remained open with possible delays, and retail pharmacies could not fill prescriptions that day.
- Ransom Or Extortion
- Unknown
- Claim Status
- confirmed