Rainier Clinical Research Center Reports Data Breach in Washington

Rainier Clinical Research Center has reported a data breach to the Washington Attorney General, with the official filing dated April 3, 2026. The organization, which conducts clinical trials and manages patient health data, is currently investigating an incident involving unauthorized access to its systems. The specific date of the breach is not yet known.

The filing confirms that unauthorized access to Rainier Clinical Research Center's systems has occurred. While the exact types of personal information involved have not been specified in the public record, individuals who received a notification letter from Rainier Clinical Research Center may have had their data exposed. The company's operations involve collecting sensitive information for research participation.

Those who received a formal data breach notification letter from Rainier Clinical Research Center are advised to carefully read the communication. This letter should provide specific details about the incident, including any particular types of information affected and the steps the organization is taking in response.

To protect against potential misuse of information, individuals should remain vigilant and monitor their accounts for suspicious activity. Consider placing a fraud alert or credit freeze with credit bureaus, especially if the notification suggests it. Regularly review financial statements and explanations of benefits for any unauthorized transactions or services.

This information is based on public filings with the Washington Attorney General. For the most accurate and up-to-date details regarding this incident, refer directly to the notification letter received from Rainier Clinical Research Center and any official updates they provide.