360 Dental PC Suffers Data Breach Affecting Over 11,000 Patients In November 2025, 360 Dental PC, a dental practice in Northeast Philadelphia, detected a cybersecurity breach after an unauthorized party accessed its internal server, locking files and disrupting operations. The incident exposed sensitive data belonging to 11,273 individuals, including personally identifiable information (PII) and protected health information (PHI) such as names, Social Security numbers, dates of birth, addresses, dental records, insurance details, and treatment histories. The breach was officially reported to the U.S. Department of Health and Human Services (HHS) on January 15, 2026, with a consumer notice posted shortly after. In response, 360 Dental PC has implemented enhanced security measures, including server rebuilds, software updates, additional firewalls, antivirus protection, multi-factor authentication (MFA), and restricted VPN access. The practice has also established secure offsite backups and ongoing monitoring to mitigate future risks. Affected individuals have been advised to place fraud alerts with credit bureaus, review account statements and insurance claims, and check annual credit reports for suspicious activity. Those seeking details on their exposed data may contact the practice directly.