How North Korea is hacking companies and governments

Poster in school in Pyongyang, North Korea on May 20, 2009. Photo by Eric LAFFORGUE/Gamma-Rapho via Getty Images.

By Rishi Iyengar

The U.S. government has revealed new details about two viruses it says North Korea is using to attack companies and governments.

The Department of Homeland Security (DHS) and the FBI issued joint alerts on Tuesday warning about two types of malware, or malicious software, that North Korean hackers are allegedly using against firms…