The covered entity (CE), Harbor Health Services, reported that an employee was the victim of an email phishing attack that affected the electronic protected health information (ePHI) of 17,380 individuals. The ePHI involved included names and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE strengthened its administrative and technical safeguards and retrained its staff on email security.