CALIFORNIAHackingHealthcareHealthcareHealth (basic)Identity (basic)HighContained

IRHYTHM TECHNOLOGIES, INC.

bd_e44d9268289dfdc2 · schema v1 · pii pii-v2

Severity

High

Discovered

—

Filed

Oct 3, 2026

To disclose

—

Affected

8,179,772

Linked

4 filings

Confidence

70%

Full breach record for IRHYTHM TECHNOLOGIES, INC. →

iRhythm Technologies, Inc. reported to HHS on 2026-10-03 a Hacking/IT Incident affecting 8,179,772 individuals. Breached information located on Network Server. No business associate was involved.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Oct 3, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

This filing is one of 4 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Texas State AGbd_0bf13798abef6f352026-10-06 · +3dCandidate
California State AGbd_6e810598e0e769312026-10-06 · +3dVerified
Oregon State AGbd_ec883df22d677a422026-10-06 · +3dVerified

Name: IRHYTHM TECHNOLOGIES, INC.
norm: irhythm technologies
Industry: Health Care Services

Name: IRHYTHM TECHNOLOGIES, INC.
norm: irhythm technologies
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 8,179,772nationwide
Data types: Health (basic)Identity (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1041 Exfiltration Over C2 ChannelT1119 Automated Collection
Threat actor: External
Regulator citations: Notified HHS

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

HHS OCROct 3 · first · this page

Texas State AG+3d

California State AG+3d

Oregon State AG+3d

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Oct 3, 2026
Raw hash: dbd2b63dbde50d23eb8243aa8fffd2b52390782150b0be86afb9eb2fb1739f5f

AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.

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Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityIRHYTHM TECHNOLOGIES, INC.

Victim entityIRHYTHM TECHNOLOGIES, INC.

IncidentUnauthorized Access

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing