The agency that runs South Carolina's Medicaid program says an employee improperly transferred information about more than 228,000 people to a private email account.
Health and Human Services Director Anthony Keck said Thursday the man has been fired. His name was not released.
Keck says an investigation earlier this month showed the information was transferred to at least one other person.
The information included names and Medicaid ID numbers, which are also Social Security numbers. The ID numbers could be used to make fraudulent claims.
Keck says the employee has not said why the data was accessed. The State Law Enforcement Division is investigating.
Keck says new security measures are in place and the people who had data stolen will be offered identity theft help.
The agency is sending personal letters to all affected beneficiaries notifying them of this incident and explaining how to protect their information moving forward. Beneficiaries can also find more information at www.myscmedicaid.org. Those receiving letters should call 1-888-829-6561.