A new batch of documents stolen from the Democratic National Committee's computer network has been released, and it contains more than 600 MB of documents about the party's donors, information pertaining to vice presidential nominee Tim Kaine, and more.

According to Politico, the documents were unveiled Tuesday at a cybersecurity conference in London. The hacker Guccifer 2.0 is behind the theft; a middle man who represented the hacker presented the information at the conference.

Officials believe the Russian government may be Guccifer 2.0. A document dump that occurred over the summer contained damaging information about the Democratic Party and its now former chairwoman, Debbie Wasserman Schultz.

Among the information contained in the latest hack, according to Politico, are spreadsheets that contain personal information about DNC donors — names, addresses, phone numbers, emails, and more.

Prior to Tuesday's release, Guccifer 2.0 last made headlines when it released documents from House Minority Leader Nancy Pelosi's computer, along with emails about how Democrats should handle the Black Lives Matter group.

Guccifer typically puts hacked information on a WordPress website, the lone exception being Tuesday's release.