Greater Dallas Healthcare Enterprises

The covered entity (CE), Tenet Healthcare, on behalf of Greater Dallas Healthcare Enterprises, reported that an employee of the CE experienced a phishing attack that affected the protected health information (PHI) of 143,833 individuals. The PHI involved included names, addresses, dates of birth, claims and treatment information, diagnoses, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE implemented additional administrative, technical, and security safeguards to better protect PHI.