iRhythm Investigates Cyber Incident After Hackers Claim Access To Sensitive Data

iRhythm Holdings disclosed a cybersecurity incident involving unauthorized access to sensitive data on third-party-hosted business applications. A threat actor claimed possession of proprietary company data and patient health information, demanding payment to prevent public disclosure. The company confirmed data exfiltration but stated core operations, clinical systems, and patient safety remain unaffected. iRhythm maintains cybersecurity insurance and does not believe the incident will materially impact financial results.