Independent public-records tracker. Not a government website.Facts from official state, HHS and SEC filings
BreachRecord

CareNexa, LLC, dba Molecular Testing Labs (“MTL”) Data Breach (December 2025): 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 California Attorney General on Dec 10, 2025, CareNexa, LLC, dba Molecular Testing Labs (“MTL”) reported a data breach. It was also reported to the Texas Attorney General. People affected: 258,874 people (official total in the Texas Attorney General filing, filed Dec 12, 2025).

Key facts

From 2 official filings
Organization
CareNexa, LLC, dba Molecular Testing Labs (“MTL”)
Source: California Attorney General, filed Dec 10, 2025
People affected
258,874
Official total in the Texas Attorney General filing, filed Dec 12, 2025
Source: Texas Attorney General, filed Dec 12, 2025
Incident dates
Mar 7, 2025 – Mar 11, 2025
Source: California Attorney General, filed Dec 10, 2025
Discovered Mar 11, 2025
Source: Texas Attorney General, filed Dec 12, 2025
Notice dates
First filed Dec 10, 2025; latest filing Dec 12, 2025
Source: California Attorney General, filed Dec 10, 2025
Information exposed
  • Social Security number
  • Medical information
  • Address
Source: Texas AG, Dec 12, 2025
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. A credit freeze stops new credit accounts being opened in your name. It is free by law and you can lift it when you need credit: Equifax, Experian and TransUnion.

  2. An IP PIN stops someone else filing a tax return with your Social Security number. Get one from the IRS at irs.gov.

  3. 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.

  4. 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.

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

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

Is the letter real?

Letters usually list a phone number for questions. We could not find an official copy of the letter, so check that the organization named in your letter appears in the official filings listed below before you call.

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 California AG source
  5. Reported to Texas AG source

Sources

  1. California Attorney General Notice filed Dec 10, 2025
    Filed as “CareNexa, LLC, dba Molecular Testing Labs (“MTL”)”
  2. Texas Attorney General Notice filed Dec 12, 2025
    Filed as “CareNexa, LLC, dba Molecular Testing Labs (“MTL”)” · 27,618 Texas residents · total 258,874
    The link opens the agency's list; search it for the organization name.

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