In early 2026, the Sinobi ransomware group claimed responsibility for an attack on Bayside Dental, a dental practice in Anacortes, Washington. The breach was reportedly discovered on or around January 5, 2026. Sinobi publicly claimed responsibility on January 21, 2026.
The breach exposed patient names, insurance details, medical histories, and financial information. The number of affected individuals is not specified, but all patients whose personal information was accessed must be notified per state law. The full extent of data types compromised, including whether SSNs were involved, has not been publicly confirmed.
While Sinobi claimed responsibility for other breaches across the United States, Spain, and France, specific details beyond the Bayside Dental incident are largely unverified. Notices to affected individuals may be delayed as investigations continue.