iRhythm Technologies reports massive hacking breach affecting 8.2 million patients
iRhythm Technologies, Inc., a healthcare provider in California, submitted a breach report to HHS OCR on 10/03/2026. The incident involved a hacking/IT incident targeting a network server. This breach potentially exposed the protected health information of 8,179,772 individuals. As a covered entity, iRhythm is responsible for notifying affected individuals and the government. Healthcare administrators should review their own vendor contracts and security protocols, especially if they interact with iRhythm or similar device manufacturers, to ensure adequate safeguards are in place against similar cyber threats.