Laboratory Corporation of America Holdings Data Breach (July 2019): What Was Exposed and What To Do

What to do now

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

1. Enroll in the free credit monitoring

   Laboratory Corporation of America Holdings offered free credit monitoring. Use the enrollment code printed in your letter. Never share that code with anyone who contacts you.

   Source: Maine Attorney General, filed Jul 16, 2019

2. Freeze your credit at all three bureaus

   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.

3. Get an IRS Identity Protection PIN

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

4. Contact your card issuer

   Call the number on the back of your card, ask whether it should be replaced, and check recent charges for anything you do not recognize.

5. Contact your bank or credit union

   Review recent transactions, ask about account alerts, and ask whether a new account number is recommended.

6. Review your health insurance statements

   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.

7. Watch for phishing calls, texts and emails

   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.

8. Check your credit reports

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

9. Report identity theft if you see signs of it

   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:

• Official copy of the notice letter (Washington State Attorney General, filed Jul 13, 2019)

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. Aug 1, 2018 Incident began (earliest date reported) source
2. Mar 30, 2019 Incident ended (latest date reported) source
3. May 14, 2019 Organization discovered the incident source
4. Jul 13, 2019 Notice letters dated source
5. Jul 13, 2019 Reported to Washington AG and HHS source
6. Jul 15, 2019 Reported to California AG source
7. Jul 16, 2019 Reported to Maine AG source

Sources

1. Washington State Attorney General Notice filed Jul 13, 2019
   Filed as “Laboratory Corporation of America Holdings (LabCorp)” · 18,330 Washington residents · Official copy of the letter
   The link opens the Attorney General's list of notices.
2. U.S. Department of Health and Human Services, Office for Civil Rights Breach report filed Jul 13, 2019
   Filed as “Laboratory Corporation of America Holdings dba LabCorp” · total 10,251,784
   The link opens the agency's list; search it for the organization name.
3. California Attorney General Notice filed Jul 15, 2019
   Filed as “Laboratory Corporation of America Holdings”
4. Maine Attorney General Notice filed Jul 16, 2019
   Filed as “Laboratory Corporation of America Holdings” · 172 Maine residents · total 10,241,756
   The link opens the Maine Attorney General's archive of notices (2012–2020).

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