Equifax, which supplies credit information and other information services, said Thursday that a data breach could have potentially affected 143 million consumers in the United States.
Equifax said it discovered the breach on July 29. “Criminals exploited a U.S. website application vulnerability to gain access to certain files,” the company said. Shares of Equifax fell more than 5 percent during after-hours trading.
Equifax said exposed data includes names, birth dates, Social Security numbers, addresses and some driver’s license numbers, all of which the company aims to protect for its customers.
The company added that 209,000 U.S. credit card numbers were obtained, in addition to “certain dispute documents with personal identifying information for approximately 182,000 U.S. consumers.”