Cybersecurity researcher Logan Lamb breached Georgia’s highly sensitive election data by accident.

Inspired by national headlines about voter system integrity after the 2016 U.S. presidential election, Lamb, who works for Bastille Networks, began poking around Kennesaw State University’s (KSU) Center for Election Systems, the organization responsible for programming voting machines for the entire state of Georgia. Unwittingly, Lamb managed to download nearly 15 GB of Georgia voter information, among them registration records for 6.7 million Georgia voters and login credentials for pollworkers to use on Election Day. Although the center had placed the files behind a firewall, it also left its root directory unsecured, allowing Lamb to download it all.