That probably wouldn't have a good outcome. If a company gets hit very hard, their options are either to pay or die. If you make it illegal to pay, their option

That probably wouldn't have a good outcome. If a company gets hit very hard, their options are either to pay or die. If you make it illegal to pay, their options are either to commit a crime (which will not kill the company even if they get caught) or die. All this will do is push companies into hiding when they get hit and not reaching out to the government and security companies for help, which makes catching these groups way harder. So, at best you kill some domestic businesses and at worst you kill domestic businesses AND help the attackers hit more companies.