The letters, dated October 8, acknowledge receipt of an application to the Health Insurance Marketplace and the eligibility of family members to purchase health coverage. One of the letters was addressed to Thomas Dougall, a lawyer from Elgin, SC.

Hadley wrote to Heritage on Thursday night and also contacted the U.S. Department of Health and Human Services, which administers HealthCare.gov, as well as elected officials in his state. He has yet to hear back from HHS, even though HealthCare.gov still displays the personal information of the South Carolina residents on his account.

Hadley reached out to Dougall on Friday to notify him of the breach. Dougall, who spoke to Heritage this evening, said he was evaluating health care options in early October. Dougall said he was able to register on HealthCare.gov, but decided not to sign up for insurance.

“The plans they offered were grossly expensive and didn’t provide the level of care I have now,” he said.

Dougall said he never saw the October 8 letter until Hadley sent it to him Friday.