Making it a crime is very regional, and enforcement is basically non existent. But opening it is not the problem here.
The analogous problem would be letters opened and anthrax inserted. That doesn't (often) happen because mail is physical and hard to do at scale. (And the anthrax cant mine bitcoin.)
Given the ineffectiveness of current laws around ransomware, bonnets, phishing, identity theft, online scams etc, I don't think a law saying "don't do that" would be a solution.
And ISPs are (by far) not the only offenders here. Every public wifi would be an equally attractive attack point.
The analogous problem would be letters opened and anthrax inserted. That doesn't (often) happen because mail is physical and hard to do at scale. (And the anthrax cant mine bitcoin.)
Given the ineffectiveness of current laws around ransomware, bonnets, phishing, identity theft, online scams etc, I don't think a law saying "don't do that" would be a solution.
And ISPs are (by far) not the only offenders here. Every public wifi would be an equally attractive attack point.