iRhythm Confirms Data Stolen in Cyberattack, Ransom Demanded
Digital health company iRhythm Holdings confirmed a cyberattack involving certain third-party-hosted business applications. The company learned of the breach on June 8, 2026, which resulted in the theft of patient protected health information, proprietary data, and other personal data. Attackers subsequently demanded a ransom.
Irhythmtech
- Domain
- irhythmtech.com
- Sector
- Health Care and Social Assistance
- Signals
- 1 linked
Signal context
First seen: Jun 8, 2026
Last updated: Jun 25, 2026
Status: Public signal
Key points
- iRhythm Holdings discovered unauthorized activity on June 8, 2026.
- Patient protected health information, proprietary data, and personal data were stolen.
- Attackers demanded a ransom.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Health Care and Social Assistance
Likely country: 🇬🇧 United Kingdom
inferred from source domains
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data
- 6 signals in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
iRhythm Confirms Data Stolen in Hack - SecurityWeekhttps://www.securityweek.com/irhythm-confirms-data-stolen-in-hack/Public source from securityweek.com.
iRhythm discloses data breach after hackers steal patient health information and demand ransomhttps://www.teiss.co.uk/irhythm-data-breach-patient-health-information-ransom/Public source from teiss.co.uk.
iRhythm discloses data breach, says hackers stole patient infohttps://www.bleepingcomputer.com/news/security/irhythm-discloses-data-breach-says-hackers-stole-patient-info/Public source from bleepingcomputer.com.
Week in review: 74k Fortinet firewall credentials stolen, Splunk Enterprise RCE under active attackhttps://www.helpnetsecurity.com/2026/06/21/week-in-review-74k-fortinet-firewall-credentials-stolen-splunk-enterprise-rce-under-active-attack/Public source from helpnetsecurity.com.
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