Rainier Clinical Research Center Data Breach

Rainier Clinical Research Center has announced a data security incident involving unauthorized access to its network. According to multiple cybersecurity monitoring sources, on February 23, 2026, the ransomware group known as Incransom publicly claimed it had compromised Rainier’s systems and exfiltrated sensitive information.

Upon discovering the incident, cybersecurity threat trackers observed that Rainier Clinical Research Center took steps to investigate the claim, though the organization has not yet publicly confirmed the full scope of the attack. The initial reports indicate that the threat actor claims to have removed data as part of a ransomware operation and has threatened to publish the stolen information.

Rainier Clinical Research Center is a long‑standing U.S. clinical research facility specializing in high‑volume medical studies, including diabetes treatment trials, medical device research, and pharmaceutical studies. With over 30 years of operation and more than 700 completed clinical studies, the Center maintains a substantial repository of patient, research, and proprietary study information.

Reports indicate that the impacted data may involve sensitive internal research documents, clinical trial logs, financial files, and confidential tax and authorization data. The attackers have stated that a “full data pack” is scheduled for release if demands are not met, heightening concerns about potential exposure.

If you received a Data Breach notification or have participated in a study at Rainier Clinical Research Center, your information may have been accessed and/or acquired by an unauthorized party.

What information is involved in the Rainier Clinical Research Center Data Breach?

Compromised information may include:

Your Personally Identifiable Information (PII) includes details that can directly identify you and may pose risk if exposed. In this incident, Social Security numbers and contact information represent sensitive data that can increase vulnerability to identity theft, financial fraud, and other unauthorized use.

If Protected Health Information (PHI) was involved, this may include data protected by HIPAA and state privacy laws. Exposure of PHI elevates risks of medical‑related fraud, insurance misuse, or unauthorized access to health‑related services.

While no official confirmation of misuse has been released, ransomware groups often release data publicly if ransom demands are not met, creating a significant risk of exposure.

Individuals who have participated in Rainier Clinical Research Center studies or have provided information to the Center should remain vigilant in monitoring financial statements, healthcare communications, and any unexpected notifications regarding clinical research participation.

Residents of California benefit from enhanced privacy protections under the California Consumer Privacy Act (CCPA), which provides additional rights regarding the collection, storage, and protection of personal information. California residents may also have additional legal remedies when personal data is compromised in a breach.

Contact the Data Breach Attorneys at Emery | Reddy today for a Free Case Review.