On May 20, 2025, Kettering Health’s network was hit by a ransomware attack, forcing 14 hospitals to switch to emergency reroutes and manual operations. The attack spread rapidly across critical systems due to undetected lateral movement, highlighting gaps in early threat detection. Patients reported suspicious calls, indicating potential data misuse. This incident underscores the urgent need for healthcare organizations to strengthen identity security, implement layered defenses, and prepare robust response plans.