Proliance Surgeons Notifies Patients After Unauthorized Network Access

Proliance Surgeons Inc. is notifying potentially impacted individuals of a data security incident discovered on September 2, 2026, when the company found unauthorized activity on its computer network. The Seattle-based surgical practice disclosed the incident in a press release published November 7, 2026.

Proliance Surgeons' Investigation and Notification

Proliance conducted an internal investigation and engaged a third-party cybersecurity vendor to assist and confirm the security of its environment. The investigation determined that certain systems and files were accessed and acquired by an unauthorized actor. Proliance then reviewed the affected systems and files to identify the specific individuals and types of information that may have been impacted, completing that review on November 2, 2026, and finalizing the list of individuals to notify.

The information involved varied by individual. Impacted data may have included name, date of birth, demographic information, patient account or medical record numbers, provider information, diagnostic and clinical information related to services received, insurance information, and, for some individuals, Social Security number. For employees and contractors, the impacted information may have included name and Social Security number. Proliance said it is currently unaware of any fraudulent misuse of the personal information involved in the incident.

Beginning the week of November 9, 2026, Proliance is sending written notification by U.S. mail or email to potentially impacted individuals for whom it had sufficient contact information. Proliance is offering complimentary Cyber Monitoring through Cyberscout, a TransUnion company, to individuals whose Social Security numbers were impacted. The services will look for personal data on the dark web and alert an individual if their personally identifiable information is found online. Eligible individuals should enroll at mytrueidentity.com by following the instructions in their individual notices and observing any enrollment deadline stated there.

Proliance Surgeons' Scale Across Washington

Proliance Surgeons is a physician-owned independent surgical practice founded in 2005 and headquartered in Seattle, according to akta.pro company records. The practice operates more than 100 care centers and 16 ambulatory surgical centers across Washington State, providing orthopedic, ENT, general surgery, ophthalmology, and rehabilitation specialty care to over 800,000 patients and more than 68,000 surgical cases annually. Its headcount range is 1001-5000, and its revenue estimate is $250 million-$500 million.

Other Health and Public-Sector Breach Disclosures

Doctor Anywhere said personal data of its users was leaked in a malicious cyber incident, with an unknown third party gaining unauthorized access, Channel NewsAsia reported on November 6, 2026. The company did not disclose the date, number of affected customers, or data type, but confirmed clinical records are unaffected. Queens Public Library confirmed a ransomware attack encrypted its systems, shutting down Wi-Fi, computers, and digital services across its 66 branches, The Record from Recorded Future News reported on November 5, 2026.

Enrollment Deadline in Individual Notices

Proliance said it has taken steps designed to prevent a similar incident from happening in the future and will continue to take steps to further strengthen the security of its environment.