IRHYTHM TECHNOLOGIES, INC.

iRhythm Technologies Inc. based in San Francisco, California, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2026-08-07 and reported on 2026-10-06. 298,647 Texas residents were affected. 8,179,772 individuals affected in total. Types of information involved: Name of individual;Address;Medical Information;Health Insurance Information;Other;Date of Birth. Consumers were notified via Notice by publication in print media;Posted at company website or special website;U.S. Mail.

iRhythm Technologies detected unauthorized access to third-party hosted business applications on June 8, 2026. Forensic investigation revealed that unauthorized individuals accessed and downloaded data between June 3 and June 8, 2026. Affected data includes names, contact information, account numbers, device serial numbers, insurance numbers, dates of service, and dates of birth. The company engaged external cybersecurity professionals and implemented its incident response plan.

iRhythm Technologies Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2026-10-06. The breach occurred during 1/1/0001, 6/3/2026 - 6/8/2026. The breach was discovered on 6/8/2026. 8,179,772 individuals were affected. Notice was sent on 10/2/2026.

iRhythm Technologies, Inc. reported to HHS on 2026-10-03 a Hacking/IT Incident affecting 8,179,772 individuals. Breached information located on Network Server. No business associate was involved.