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BreachRecord

iRhythm Technologies Inc. Data Breach (October 2026): What Was Exposed and What To Do

Last updated Oct 20, 2026 · Based on 2 official filings · See sources

According to the notice filed with the Texas Attorney General on Oct 6, 2026, iRhythm Technologies Inc. reported a data breach. It was also reported to the California Attorney General. People affected: 8,179,772 people (official total in the Texas Attorney General filing, filed Oct 6, 2026).

Key facts

From 2 official filings
Organization
iRhythm Technologies Inc.
Source: Texas Attorney General, filed Oct 6, 2026
People affected
8,179,772
Official total in the Texas Attorney General filing, filed Oct 6, 2026
Source: Texas Attorney General, filed Oct 6, 2026
Incident dates
Jun 3, 2026 – Jun 8, 2026
Source: Texas Attorney General, filed Oct 6, 2026
Discovered Aug 7, 2026
Source: Texas Attorney General, filed Oct 6, 2026
Notice dates
First filed Oct 6, 2026
Source: Texas Attorney General, filed Oct 6, 2026
Information exposed
  • Medical information
  • Health insurance information
  • Date of birth
  • Name
  • Address
  • Other information
Source: Texas AG, Oct 6, 2026
Filed with
Free credit monitoring
No offer is stated in the filings we have. Check your letter.

What to do now

Steps chosen from the information listed in the official filings. Your own letter may list more.

  1. Check the Explanation of Benefits (EOB) statements from your insurer for visits, prescriptions or claims you do not recognize, and contact your insurer about anything unfamiliar.

  2. Scammers often contact people after a breach, pretending to be the organization, a bank or a government agency. Do not give your Social Security number, passwords or codes to anyone who contacts you first.

  3. You can get free credit reports from all three bureaus at AnnualCreditReport.com, the official site.

  4. The Federal Trade Commission's IdentityTheft.gov gives you a personal recovery plan.

Is the letter real?

The agency published an official copy of the notice. Compare your letter with it:

Letters usually list a phone number for questions. Before calling, check that it matches the number in the official copy linked above.

Never give your Social Security number, bank details or passwords to someone who contacts you first.

Timeline

  1. Incident began (earliest date reported) source
  2. Incident ended (latest date reported) source
  3. Organization discovered the incident source
  4. Reported to Texas AG and California AG source

Sources

  1. Texas Attorney General Notice filed Oct 6, 2026
    Filed as “iRhythm Technologies Inc.” · 298,647 Texas residents · total 8,179,772
    The link opens the agency's list; search it for the organization name.
  2. California Attorney General Notice filed Oct 6, 2026
    Filed as “iRhythm Technologies Inc.” · Official copy of the letter

Last updated Oct 20, 2026. Our summaries are written in our own words from the official filings above. Spotted an error? Report a correction.