NovoCure discloses cyber incident exposing patient ID numbers and contact info

NovoCure Ltd

• Unauthorized access detected mid-August 2026; containment and investigation initiated with forensic experts.
• Exposed data: internal patient ID numbers for over 1,400 U.S. records; no names or identifying data for those.
• Fewer than 50 other patients in western U.S. had additional identifying info exposed; also provider and employee contact info.
• No access to medical devices; systems fully functional; company believes no material financial impact.
• Evaluating regulatory and legal notification requirements; will notify impacted patients as required.