The world's top ransomware gangs have created a cybercrime "cartel"

Several of the largest Russian ransomware cybercriminal gangs have partnered up and are sharing hacking techniques, purloined data-breach information, malware code and technology infrastructure.

"They're not a cartel in the traditional sense, like oil companies that have a lock on the supply of crude," DiMaggio explained. "But they do have technology infrastructure, and some are big enough to have their own [ransomware] code. These are limited resources."