The Interlock ransomware gang has claimed a recent cyberattack on the Kettering Health healthcare network and leaked data allegedly stolen from breached systems.

Kettering Health employs over 15,000 people, including more than 1,800 physicians, and it manages 14 medical centers and over 120 outpatient facilities in western Ohio.

The nonprofit organization disclosed a cyberattack on May 20 that triggered an outage affecting its call center and some patient care systems, leaving staff without access to computerized charting systems and forcing care teams back to pen and paper . The incident also led to canceled elective inpatient and outpatient procedures, while emergency rooms and clinics remained open and continued seeing patients.

On Monday, Kettering Health issued an update sayi

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