Hackers are now demanding $70 million in Bitcoin to unfreeze computers in their latest ransomware attack on hundreds of US companies.

A ransomware attack paralyzed networks of more than 200 US companies on Friday.

Hackers targeted software supplier Kaseya and penetrated cloud-service providers by going through its network management system.

The media is blaming the Russians for the Kaseya hack.

Joe Biden however, told reporters over the weekend he wasn’t certain the Russians were behind the latest hack – but he threatened Vladimir Putin anyway.

According to CBS, the hackers are now demanding $70 million in Bitcoin to unscramble and release the data.

CBS reporter Catherine Herridge has more information on this developing story: