Data Breach Law Group Investigates the Rainier Clinical Research Center Data Breach
By Data Breach Law Group | Posted on April 3, 2026 · WA
Miami, FL — Data Breach Law Group is investigating a data breach involving Rainier Clinical Research Center, reported to the WA Attorney General on April 3, 2026. The firm is reviewing whether affected individuals have legal claims arising from the incident.
Rainier Clinical Research Center recently experienced a cybersecurity incident that compromised sensitive data stored on its network. As a clinical research organization handling sensitive healthcare and personal records, the entity maintains extensive files on individuals participating in medical studies and trials. On April 3, 2026, Rainier Clinical Research Center officially reported the security failure to the Washington Attorney General, confirming that a data breach occurred. The exposed data includes personal information, which can create significant privacy and security risks for everyone affected. When personal information is stolen, unauthorized parties gain details that can be used to facilitate targeted phishing attacks, identity theft, and fraudulent financial activities. Because this data often links a person's identity to specific medical or clinical contexts, victims face unique vulnerabilities regarding their personal privacy. Individuals who received a notification letter in the mail from Rainier Clinical Research Center may be eligible to participate in a class action lawsuit investigation. Those impacted can take action by signing up for a free case review with no upfront fees to understand their legal rights.
Source: WA Attorney General breach notification record
If you were affected
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
Did you receive a letter from Rainier Clinical Research Center?
A case review is free and confidential. Tell us about your letter and we will explain your options.