A data analytics contractor employed by the Republican National Committee accidentally leaked the personal information of nearly 200 million American voters between June 1 and June 14.
Deep Root Analytics confirmed the data leak, which contained personal information on nearly 61 percent of the U.S. population. It came after the contractor stored internal documents on a publicly accessible Amazon server.
People took to Twitter to voice their concerns about the leak.
"We take full responsibility for this situation," Deep Root Analytics said in a statement, according to The Hill.
The RNC was a major client of Deep Root during the 2016 election season and used the information the company generated determine how to market to its audience.
Deep Root Analytics reported that their cloud server had 25 terabytes of data exposed, including 1.1 terabytes available for download.