Researchers have disclosed a huge leak of government data stemming from the Oklahoma Securities Commission. As discovered by UpGuard researcher Greg Pollock, 3 TB of data was exposed, including millions of files, many of which pertained to FBI investigations.

The data was exposed on a server sans password protection, meaning anyone with an Internet connection may have had access. Chris Vickery, head of research for UpGuard, reported to Forbes the FBI data had seven years’ worth of archive enforcement actions. Files included FBI interviews, emails among people involved with investigations, and letters from witnesses. They named companies involved with investigations, such as AT&T and Goldman Sachs.