iRhythm Provides Update on Cybersecurity Incident Previously Disclosed in June 2026
Key Highlights
- ➤Data accessed and downloaded June 3-8, 2026, by unauthorized individuals
- ➤Impacted data includes patient names, contact details, insurance numbers, and birth dates
- ➤iRhythm (IRTC) began notifying impacted individuals October 2, 2026
- ➤No impact identified to products, operations, patient safety, or patient needs
- ➤iRhythm (IRTC) says incident is not reasonably likely to materially impact financial results
SAN FRANCISCO, Oct. 02, 2026 (GLOBE NEWSWIRE) -- iRhythm Holdings, Inc. (NASDAQ:IRTC) today provided an update regarding the cybersecurity incident previously disclosed in June 2026. Following completion of the forensic investigation and subsequent review to determine the nature of the impacted data, the company has begun notifying impacted individuals.
As previously disclosed, on or around June 8, 2026, iRhythm detected unauthorized access in certain third-party-hosted business applications. Upon detecting the unauthorized access, iRhythm promptly implemented its incident response plan. As part of the investigation, iRhythm has been working very closely with external cybersecurity professionals experienced in handling these types of incidents. After completing the forensic investigation, iRhythm learned certain data it stores was accessed and downloaded by unauthorized individuals between June 3 and June 8, 2026.
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