The California Office of the Attorney General reported a data breach involving FastHealth Corporation on February 27, 2018. The breach occurred in mid-August 2017 and involved unauthorized access to FastHealth's web server, potentially compromising individuals' names and personal information. The number of individuals affected is unknown.

Fast Health in Tehachapi suffered from a security breach that affect over 700 of its patients. They stole third-party altered code on their server, and the credit card information of close to 700 customers who paid bills online. They launched the investigation and started notifying the affected patients.

The California Office of the Attorney General reported that FastHealth Corporation experienced a data breach involving unauthorized access to its web server, occurring between January 14, 2016, and December 20, 2016. The breach potentially affected individuals' names, addresses, email addresses, dates of birth, health insurance information, clinical details, medication records, and Social Security numbers. The breach was reported on May 26, 2017.