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BreachRecord

Parexel International, LLC (“Parexel”) 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 Texas Attorney General on Dec 17, 2025, Parexel International, LLC (“Parexel”) reported a data breach. It was also reported to the California Attorney General. People affected: 65,587 people (official total in the Texas Attorney General filing, filed Dec 17, 2025).

Key facts

From 2 official filings
Organization
Parexel International, LLC (“Parexel”)
Also filed as: Parexel International, LLC
Source: Texas Attorney General, filed Dec 17, 2025
People affected
65,587
Official total in the Texas Attorney General filing, filed Dec 17, 2025
Source: Texas Attorney General, filed Dec 17, 2025
Incident dates
Aug 9, 2025 – Oct 5, 2025
Source: Texas Attorney General, filed Dec 17, 2025
Discovered Nov 20, 2025
Source: Texas Attorney General, filed Dec 17, 2025
Notice dates
First filed Dec 17, 2025
Source: Texas Attorney General, filed Dec 17, 2025
Information exposed
  • Social Security number
  • Financial account number
  • Date of birth
  • Name
Source: Texas AG, Dec 17, 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. Review recent transactions, ask about account alerts, and ask whether a new account number is recommended.

  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 Texas AG and California AG source

Sources

  1. Texas Attorney General Notice filed Dec 17, 2025
    Filed as “Parexel International, LLC (“Parexel”)” · 1,203 Texas residents · total 65,587
    The link opens the agency's list; search it for the organization name.
  2. California Attorney General Notice filed Dec 17, 2025
    Filed as “Parexel International, LLC”

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