The covered entity (CE), Kaiser Foundation Health Plan of Colorado, reported that on July 24, 2014, it erroneously mailed letters containing protected health information (PHI) to incorrect recipients, affecting 11,551 individuals. Each letter contained the name of another program member in a chronic condition management program. The CE provided breach notification to HHS, affected individuals, and the media. As a result of OCR's investigation, the CE sanctioned and retrained the responsible employee.