If all crypto can only be broken by a machine that can itself only be made by 3 companies all of which are very careful about who they sell to, we get a few governments spying on everyone (including each other), while keeping normal criminal hacking (and insufficiently important governments) locked out.
Depends on machine availability.
If all crypto can only be broken by a machine that can itself only be made by 3 companies all of which are very careful about who they sell to, we get a few governments spying on everyone (including each other), while keeping normal criminal hacking (and insufficiently important governments) locked out.