The covered entity (CE), Harvard Pilgrim Health Care, reported that it mistakenly mailed the protected health information (PHI) of 8,027 individuals to the wrong recipients. The PHI involved included names, dates of birth, phone numbers, medications prescribed, diagnoses, and other treatment information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE strengthened its administrative and technical safeguards and retrained its employees. OCR obtained assurances that the CE implemented the corrective actions noted.