The covered entity (CE), Seneca Nation Health System, reported that it was the victim of a cybersecurity incident that affected the protected health information (PHI) of 16,879 individuals. The PHI involved included names, dates of birth, Social Security numbers, addresses, drivers’ license numbers, financial and claims information, diagnoses/conditions, lab results, medications, and treatment information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE provided complimentary credit monitoring services to the affected individuals and implemented additional administrative, technical, and security safeguards to better protect its PHI.