Iran has laid groundwork for extensive cyberattacks on U.S., say officials - NBC News

Iran has positioned cyber weapons to hit private firms and infrastructure, but there is no suggestion an attack is imminent, say U.S. officials. ....
https://www.nbcnews.com/news/us-news/iran-has-laid-groundwork-extensive-cyberattacks-u-s-say-officials-n893081