While last week’s indictment of 12 Russian intelligence officers seeking to influence the outcome of the 2016 presidential election may have come as a surprise to many U.S. citizens, a leading cybersecurity expert believes it shows just how sophisticated the threat is to our democracy.

“One of the most striking things in the indictment is really how much of a campaign it is, and how many hundreds of people and how much of an assembly line operation it is. And that speaks to the nature of the hacking and what it really takes to be successful,” Oren Falkowitz, CEO of cybersecurity firm Area 1 Security, told Yahoo News’ podcast “Bots & Ballots.” “Cyberoffensive operations, or stealing or hacking, it’s a numbers game and it requires large campaigns. We often talk about these things as if they’re ultra-targeted, and that’s simply not the case.”

Falkowitz, who held senior positions at the National Security Agency, told “Bots & Ballots” host Grant Burningham that the threat from bad “cyber actors” is continually evolving.