A computer server for the covered entity’s (CE) reinsurer was infected with ransomware from March 12 to August 8, 2016, making protected health information (PHI) accessible. The PHI included the names, addresses, dates of birth, Social Security numbers, and clinical data pertaining to approximately 1,000 individuals. The CE submitted a breach report to HHS out of caution even though the reinsurer was not a business associate (BA). The CE provided evidence that a BA was not necessary and the disclosures were permitted under HIPAA for health care operations purposes. The reinsurer provided breach notification to the affected individuals and the CE sent notice to the media and posted a substitute notice on its website. The CE also retrained staff and reviewed its BA agreements and its HIPAA policies and procedures. OCR obtained documentation that the CE implemented the actions listed above.