iRhythm says unauthorized individuals accessed and downloaded data from certain third-party-hosted business applications between June 3 and June 8, 2026. Its October 2 update lists the types of information involved and says it began notifying affected people for whom it had contact information. Neither that update nor the accessible California breach-notice record gives a total number of people affected, so the “hundreds of thousands” figure in the original headline is not confirmed by those sources.
What happened in the iRhythm breach?
iRhythm Technologies said it identified unauthorized activity on June 8, 2026, involving information maintained on certain third-party-hosted business applications. The company’s June 15 SEC filing attributed the access to social engineering. iRhythm said it received a threat-actor communication on June 9 claiming access to sensitive information, including proprietary data and patient protected health information, and demanding payment to prevent public disclosure. The company confirmed that certain data had been exfiltrated. iRhythm’s June 15, 2026 SEC filing
As an Amazon Associate I earn from qualifying purchases.
After its forensic investigation and review, iRhythm’s October 2 update said unauthorized individuals accessed and downloaded data from June 3 through June 8. The California Attorney General’s notice record also lists June 3 and June 8 as the breach dates. California Attorney General breach-notice record iRhythm’s October 2, 2026 incident update
How many people were affected?
The total is not stated in the accessible primary sources cited here. The California Attorney General’s record confirms that iRhythm submitted a notice, but its accessible text does not show an affected-person count. iRhythm’s October update describes the data involved and its notification effort without publishing a total. The headline’s “hundreds of thousands” scale should therefore be treated as an assertion from the reporting context, not a figure independently established by these records.
#1 Best Overall
- SHIELD YOUR PRIVACY WITH THE ID DEFENDER ROLLER STAMP: Tired of worrying about your personal information falling into the wrong hands? The ID Defender Roller Stamp offers a simple yet effective solution. With a unique wide camouflage pattern, it quickly and easily conceals sensitive data on a variety of surfaces.
- PRIVACY PROTECTION: useful not only as an ADDRESS BLOCKER or ID POLICE, but also keeps away preying eyes from invoices, authority documents, checks, bank statements and many more.
- SIMPLE TO USE: Just remove the cover and swipe. The wide swipe makes it easy to cover sensitive information.
- VERSATILE APPLICATION: Ideal for a variety of documents, including contracts, court documents, shipping labels, tax returns and more.
- LONG-LASTING INK: The high-quality ink works on both glossy and standard paper and provides up to 330 feet of coverage.
What information did iRhythm say was involved?
iRhythm’s October 2 update lists the following categories in the data reviewed:
- Patient name
- Contact information: address, email address and phone number
- iRhythm patient account number
- iRhythm device serial number
- Patient insurance number
- Date of service
- Date of birth
The company said in its June 15 SEC filing that it did not store or retain individual financial account or payment-card information. That does not make the disclosed categories harmless: combined identity, contact, insurance and care-related details can create privacy and fraud risks. iRhythm incident update SEC filing
Rank #2
- Protect Your Privacy Effectively: you can use this identity protection roller stamp to flip personal information in under 2 seconds and save time and effort, effectively hiding and protecting your personal information, such as phone numbers, social security numbers, bank statements, shipping addresses, tax documents,data, billing addresses and many more
- Ideal Replacement for Shredder: if you are still using a shredder to shred cards or papers that are printed with your personal information, this security stamper roller will be an alternative tool to block out your privacy effectively and easily
- Refillable and Long Term Use: this confidential stamp can cover a total length of up to 100 meter/ 109 yards, approximately 3,200 prints are covered, pattern width is about 0.78 inches; When ink runs out, you can refill the security stamp with ink
- Easy to Use: just continuous roll the address blocker roller stamp to conceal information, and roll on a second layer for maximum protection, works on paper, envelopes, folders, address labels, etc., please note that may not work on smooth surfaces
- How to Refill the Ink: there are 4 pieces of ID stamp refills, each is about 1.5 ml, you just need to unscrew the cap of the ink bottle (not disposable, you can close the cap for next time of use), then insert it into the hole on the side of the stamp, then turn it upside down, about 5 minutes later, the most of the ink will be replenished to the security roller stamp
Is a Zio device or clinical system affected?
The disclosed incident involved third-party-hosted business applications; it was not described as a breach of cardiac monitoring devices or clinical systems. iRhythm said it had not identified effects on its products, clinical or medical-device systems, patient safety, manufacturing and distribution, financial reporting systems, or ability to meet patient needs. These are the company’s reported assessments, not an independent audit finding. June 15 SEC filing
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWhat did iRhythm do, and what remains uncertain?
iRhythm said it activated its incident response plan and engaged outside cybersecurity experts. Its June 15 filing said it had not identified evidence of ongoing unauthorized access as of that filing; its June 30 quarterly filing repeated that assessment as of the filing date. The October update followed the company’s forensic investigation and says notification began for affected people for whom iRhythm maintained contact information.
Rank #3
- The id defender roller is the ultimate tool for guarding your personal data at home or in the office. Prevent identity theft by quickly masking sensitive information on mail, documents, or labels, giving you confidence that your details remain private and secure with Vantamo id theft protection.
- Effortlessly block out sensitive text with the label cover up identity protection, designed for quick, one-handed use. No more scraping off all shipping labels or doing a lot of swipes with a marker! Even first-time users will find the process intuitive and straightforward, making it a practical label eraser roller for anyone!
- Vantamo wide rolling privacy marker is fully refillable and arrives with 6 ink refill for self inking stamps ensuring lasting performance. Don't run out when you need it the most. The ink is specially designed for hiding information.
- Our address blackout stamp not only protects your privacy but also helps the environment. After using the roller on your documents, the paper is ready to be safely recycled, making this address eraser a smart alternative to shredding or tossing documents.
- Here at Vantamo, we are creating products that people love! We are committed to providing excellent customer service on every black out stamp. If you ever have questions or concerns, our team is here to help, ensuring your id defender delivers reliable protection and peace of mind every time.
The June 30 filing reported second-quarter investigation and remediation losses, expected further expenses including patient notifications and identity protection, and said insurance reimbursement was uncertain. Those disclosures concern the company’s costs and do not establish a final total for affected people. iRhythm’s June 30, 2026 Form 10-Q
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should you do if you receive an iRhythm notice?
- Verify the notice. Before sharing information, confirm it through iRhythm’s official incident page or a contact channel you already know belongs to the company.
- Review financial and credit activity. iRhythm recommends checking account statements and credit reports for irregular activity, obtaining free credit reports, and considering a fraud alert or security freeze on your credit files.
- Watch for medical identity misuse. Review health-care and insurance communications for services or claims you do not recognize, and contact the relevant provider or insurer if something appears incorrect.
- Contact the company if you need help. iRhythm lists a call center at 1-844-770-7175, open weekdays from 8 a.m. to 8 p.m. Eastern, excluding major U.S. holidays.
iRhythm’s October update says the company has no evidence that personal information has been or will be used to commit identity theft. That is the company’s stated assessment; it does not establish that misuse is impossible. iRhythm incident update and contact details
Quick Recap
Best Value
- Personal Information Protection: there are 4 pieces of address blocker roller stamps in 2 different sizes, and 5 pieces of 1.5 ml inks, a total of 9 pieces. Mainly applied to hide information such as social security numbers, bank statements, billing addresses, shipping addresses, tax documents and so on, protecting your personal information
- Re Inking Unlimitedly: the information blocker stamp can cover information of the length about 100 meters. And each security stamper roller has an oil hole, so you don't have to worry about you having to throw away the roller stamps when the ink runs out. They can be refilled with oil for repeated use, saving time and energy
- Cover Fast: our identity protection rollers come in 2 different sizes, and you can choose different sizes according to different areas of information to cover large amounts of private information in a fast and clean way, avoiding identity theft and rejecting privacy disclosure harassment
- Easy to Use: just remove the lid on the ID stamp blocker roller and open it, and then gently slide it on the place where the information needs to be covered. It is suitable for most ordinary paper with black words, and can protect your personal privacy in time
- Save Time and Energy: compared with the shredder, the personal confidential stamp has a small size, easy to carry, can be applied anytime and anywhere. Compared to the marker, it covers a larger area and can be quickly covered with a single swipe. There is no need to worry about whether you can not protect your privacy in time
Rank #4
- Personal Information Protection: there are 4 pieces of address blocker roller stamps in 2 different sizes, and 5 pieces of 1.5 ml inks, a total of 9 pieces. Mainly applied to hide information such as social security numbers, bank statements, billing addresses, shipping addresses, tax documents and so on, protecting your personal information
- Re Inking Unlimitedly: the information blocker stamp can cover information of the length about 100 meters. And each security stamper roller has an oil hole, so you don't have to worry about you having to throw away the roller stamps when the ink runs out. They can be refilled with oil for repeated use, saving time and energy
- Cover Fast: our identity protection rollers come in 2 different sizes, and you can choose different sizes according to different areas of information to cover large amounts of private information in a fast and clean way, avoiding identity theft and rejecting privacy disclosure harassment
- Easy to Use: just remove the lid on the ID stamp blocker roller and open it, and then gently slide it on the place where the information needs to be covered. It is suitable for most ordinary paper with black words, and can protect your personal privacy in time
- Save Time and Energy: compared with the shredder, the personal confidential stamp has a small size, easy to carry, can be applied anytime and anywhere. Compared to the marker, it covers a larger area and can be quickly covered with a single swipe. There is no need to worry about whether you can not protect your privacy in time
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
