iRhythm: June breach of Zio heart-monitor maker's business apps hit 8.2 million patients ยท updates https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m iRhythm, the maker of the Zio wearable ECG heart monitor, says unauthorized people accessed and downloaded data from certain third-party-hosted business applications between June 3 and June 8 2026. Its June 8-K says the data was obtained through social engineering and that a threat actor demanded payment not to leak it. After its forensic review, iRhythm began notifying patients on Oct 2 2026: exposed data includes names, addresses, email addresses, phone numbers, dates of birth, iRhythm patient account and device serial numbers, insurance numbers and dates of service. iRhythm says clinical and medical device systems, payment cards and financial accounts were not involved. On Oct 29 SecurityWeek reported the HHS breach portal lists 8,179,772 affected individuals. Patients should watch for phishing and medical identity fraud, check insurance statements, and consider a credit freeze. en Thu, 29 Oct 2026 00:00:00 GMT iRhythm: June breach of Zio heart-monitor maker's business apps hit 8.2 million patients: SecurityWeek reports the HHS breach portal lists 8,179,772 affected individuals. https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m#2026-10-29-88929981 Thu, 29 Oct 2026 00:00:00 GMT high <p><a href="https://www.securityweek.com/hhs-filing-puts-irhythm-data-breach-toll-at-8-2-million/">Source</a></p> iRhythm: June breach of Zio heart-monitor maker's business apps hit 8.2 million patients: iRhythm finishes its forensic review and begins notifying affected patients. https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m#2026-10-02-12f3c3b3 Fri, 02 Oct 2026 00:00:00 GMT high <p><a href="https://investors.irhythmtech.com/news/news-details/2026/iRhythm-Provides-Update-on-Cybersecurity-Incident-Previously-Disclosed-in-June-2026/default.aspx">Source</a></p> iRhythm: June breach of Zio heart-monitor maker's business apps hit 8.2 million patients: iRhythm detects the unauthorized activity; on June 9 a threat actor claims to have the data and demands payment not to publish it. https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m#2026-06-08-e7580521 Mon, 08 Jun 2026 00:00:00 GMT high <p><a href="https://www.sec.gov/Archives/edgar/data/1388658/000138865826000055/irtc-20260610.htm">Source</a></p> iRhythm: June breach of Zio heart-monitor maker's business apps hit 8.2 million patients: Unauthorized individuals begin accessing and downloading data from iRhythm's third-party-hosted business applications (through June 8). https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m https://pwn.watch/i/irhythm-zio-patient-data-breach-8-2m#2026-06-03-2b32af5a Wed, 03 Jun 2026 00:00:00 GMT high <p><a href="https://investors.irhythmtech.com/news/news-details/2026/iRhythm-Provides-Update-on-Cybersecurity-Incident-Previously-Disclosed-in-June-2026/default.aspx">Source</a></p>