The 2016 presidential election had its share of surprising and alarming moments, but none more so for cybersecurity experts than the summer’s hack of Democratic National Committee email servers, along with email accounts of prominent Democratic leadership. A hacker operating under the moniker Guccifer 2.0 leaked the emails to WikiLeaks, which subsequently published an archive of the stolen emails.

Confusing matters slightly, consulting cybersecurity groups such as CrowdStrike examined emails associated with the hack and found that not only was there some evidence of Russian state involvement, some of the documents released through WikiLeaks may have been doctored and integrated into the breached emails.