iRhythm Discloses Data Breach Impacting 8.2 Million Individuals

# iRhythm Discloses Data Breach Impacting 8.2 Million Individuals

https://gcdradar.vercel.app/incidents/irhythm-discloses-data-breach-impacting-8-2-million-individu · AIR-2026-1636 · closed 2026-11-12

- Lane: Breaches & attacks
- Severity: 4 (Confirmed real-world loss): Confirmed real-world PII breach impacting 8.2 million individuals.
- Fix status: No fix needed
- First reported: 2026-10-29
- AI role: No AI role
- Products: iRhythm systems

## Summary

An intrusion into third-party-hosted business applications led to the theft of personal information as well as account and device data. The Department of Health and Human Services filing confirmed that 8.2 million individuals were affected.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-10-29: HHS Filing Puts iRhythm Data Breach Toll at 8.2 Million (https://securityweek.com/hhs-filing-puts-irhythm-data-breach-toll-at-8-2-million)

## Sources

- 2026-10-29 SecurityWeek: HHS Filing Puts iRhythm Data Breach Toll at 8.2 Million https://securityweek.com/hhs-filing-puts-irhythm-data-breach-toll-at-8-2-million

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.