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Confirmed breach

Rainier Clinical Research Center data breach

USUnited States

Rainier Clinical Research Center (United States) notified the Washington Attorney General of a data breach on 3 April 2026. It told that state about 650 Washington residents; the total can be higher.

Status
Confirmed breach
People affected
650 Washington residents (one state’s count; the total can be higher)
Reported
3 April 2026

What was exposed

The register’s list does not say what was exposed; the notice it links to (under Sources) usually does.

Before the notice: the ransomware gang INC Ransom named Rainier Clinical Research Center on its leak site on 23 February 2026, 39 days before this was reported. Matched by the organisation’s name: the notice itself does not say who the attacker was.

What the letter says

We have not read this letter yet.

Got a letter or email about this breach? Check it is real →

Read the letter (PDF), as filed with the Washington Attorney General.

Sources

Official notices are read by code from the regulator’s own register. More notices to Washington. · Corrections and changes

If Rainier Clinical Research Center had your data

  1. Look for Rainier Clinical Research Center’s own notice or letter: it should say what of yours was involved. Keep it.
  2. The register’s list does not say what was exposed; the notice it links to (under Sources) usually does. If Rainier Clinical Research Center has a password of yours, change it now to be safe.
  3. Expect scams that use your details: calls, texts or emails pretending to be Rainier Clinical Research Center, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

One email to confirm first. We use your address only for this alert, and one click deletes it.

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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.