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Kettering Adventist Health now notifying patients affected by May 2025 ransomware attack

Databreaches •Dissent • February 12, 2026

On May 20, 2025, CNN reported that a ransomware attack had triggered a “system-wide technology outage” at Kettering Adventist Health in Ohio. Disclosures by Kettering Health would later explain that the healthcare system had been attacked by InterLock, a ransomware gang who were threatening to destroy data and publish data if their demands were not... Source

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Kettering Health Patients Notified After May 2025 Ransomware Attack Kettering Health has notified patients about a ransomware attack that occurred on May 20, 2025, affecting their systems. The attack, carried out by the InterLock ransomware gang, caused a significant technology outage and led to the potential exposure of patient data. Affected individuals are being offered credit monitoring and identity restoration services. 2 sources 66

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Kettering Adventist Health now notifying patients affected by May 2025 ransomware attack

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