Radia Inc. Hit by CHAOS Ransomware Attack, Exposing 655GB of Sensitive Data On July 16, 2026, Radia Inc. P.S., a prominent physician-owned radiology group based in Washington state, fell victim to a ransomware attack claimed by the CHAOS cybercriminal group. The attackers asserted they exfiltrated 655GB of sensitive data, which was subsequently posted on the dark web. Radia Inc., which employs over 200 board-certified radiologists and serves 50+ hospital and clinic partners, provides critical imaging services across the region. The breach compromised a broad range of confidential information, including: - Patient data: Full names, Social Security numbers, medical record numbers, dates of birth, diagnostic imaging reports, and billing records. - Corporate records: Financial documents (tax filings, banking records, accounts payable/receivable), legal contracts, and HR files. - Employee information: Social Security numbers, 401k details, benefits data, I-9 forms, and ADP system records. The exposed data spans protected health information (PHI), personally identifiable information (PII), and internal business documents, raising significant concerns about identity theft, financial fraud, and operational disruptions. Shamis & Gentile P.A., a class-action law firm, is investigating potential legal action for affected individuals, citing damages such as identity monitoring costs and financial losses. The incident underscores the growing threat of ransomware attacks targeting healthcare providers, where the combination of medical and financial data makes them prime targets for cybercriminals.

Ransomware Group Chaos Claims Attack on Radia, Exposing Sensitive Data The ransomware group Chaos has claimed responsibility for a cyberattack on Radia, a Washington-based radiology group serving over 50 hospitals and clinics across Washington and Idaho. According to reports, the group gained access to Radia’s internal network, housing sensitive data, and has already posted a sample of the exfiltrated information online. As of the latest updates, no official confirmation has been provided by Radia regarding the breach’s scope or the nature of the compromised data. The incident is under investigation by attorneys working with ClassAction.org, who are exploring the possibility of a class action lawsuit on behalf of affected individuals including current and former patients and employees. The potential lawsuit aims to address harm resulting from the breach, such as loss of privacy, financial costs, and time spent mitigating exposure. Legal representatives are seeking input from those who believe their data may have been compromised. The attack underscores ongoing risks to healthcare providers, where sensitive patient and operational data remains a prime target for ransomware groups. Further details on the breach’s impact and Radia’s response are pending.