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BreachRecord

Wilmer Cutler Pickering Hale and Dorr LLP Data Breach (July 2026): What Was Exposed and What To Do

Last updated Oct 20, 2026 · Based on 3 official filings · See sources

According to the notice filed with the California Attorney General on Jul 10, 2026, Wilmer Cutler Pickering Hale and Dorr LLP reported a data breach. It was also reported to the Washington State Attorney General and the Texas Attorney General. People affected: 911,658 people (official total in the Texas Attorney General filing, filed Aug 21, 2026).

Key facts

From 3 official filings
Organization
Wilmer Cutler Pickering Hale and Dorr LLP
Source: California Attorney General, filed Jul 10, 2026
People affected
911,658
Official total in the Texas Attorney General filing, filed Aug 21, 2026
Source: Texas Attorney General, filed Aug 21, 2026
Incident dates
May 8, 2026
Source: California Attorney General, filed Jul 10, 2026
Discovered May 8, 2026
Source: Washington State Attorney General, filed Jul 15, 2026
Notice dates
First filed Jul 10, 2026; latest filing Aug 21, 2026
Source: California Attorney General, filed Jul 10, 2026
Information exposed
  • Social Security number
  • Driver's license
  • Date of birth
  • Name
  • Address
  • Other information
Sources: Washington AG, Jul 15, 2026; Texas AG, Aug 21, 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. 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. Ask your state's DMV what it recommends when a driver's license number has been exposed. Find your state's agency at USA.gov.

  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?

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. Organization discovered the incident source
  3. Reported to California AG source
  4. Reported to Washington AG source
  5. Reported to Texas AG source

Sources

  1. California Attorney General Notice filed Jul 10, 2026
    Filed as “Wilmer Cutler Pickering Hale and Dorr LLP”
  2. Washington State Attorney General Notice filed Jul 15, 2026
    Filed as “Wilmer Cutler Pickering Hale and Dorr LLP” · 17,253 Washington residents · Official copy of the letter
    The link opens the Attorney General's list of notices.
  3. Texas Attorney General Notice filed Aug 21, 2026
    Filed as “Wilmer Cutler Pickering Hale and Dorr LLP” · 80,528 Texas residents · total 911,658
    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.