People search iRhythm Technologies data breach timeline because regulated data and trust are existential—one incident triggers class actions and regulator exams. BreachHistory indexes 1 iRhythm Technologies-linked incident. This page maps every attested event through 2026 with internal links to canonical records.
Why iRhythm Technologies breach history matters
iRhythm Technologies operates in Healthcare (United States). Across indexed rows, recurring themes include ransomware and extortion, credential theft and social engineering, third-party and supply-chain exposure. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2026 — patient PHI stolen from third-party-hosted apps (SEC disclosure)
Unverified claim — treat actor counts cautiously. Digital cardiac-monitoring vendor iRhythm Holdings disclosed in a June 10, 2026 SEC filing that it received extortion communications on June 9 from a threat actor claiming possession of proprietary data, patient protected health information, and other personal information stored on third-party-hosted business applications. The company confirmed exfiltration from those applications on June 10, classified the incident as material given data volume, and stated attackers gained access through social engineering. iRhyth Exposed categories include Patient protected health information and personal data per SEC filing; payment cards and clinical device systems not involved per company. No attested victim count is published for this row yet. See the irhythm-holdings 2026 record and canonical BreachHistory entry.
Patterns and analysis
- Ransomware and extortion — appears across multiple iRhythm Technologies catalog entries; prioritize controls that address this class of failure.
- Credential theft and social engineering — appears across multiple iRhythm Technologies catalog entries; prioritize controls that address this class of failure.
- Third-party and supply-chain exposure — appears across multiple iRhythm Technologies catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Watch for medical-ID theft and billing fraud after health-data incidents.
- Step 5: Bookmark the iRhythm Technologies company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/irhythm-holdings · Latest: irhythm-holdings2026.
Sources: BreachHistory catalog (1 row for iRhythm Technologies), company and regulator disclosures cited in individual breach records.