Automatically opting-in customers to a more restrictive TOS is pretty suspect, especially given the timing. IANAL, but I'm pretty sure that a court would not allow that, given that the TOS was changed AFTER the breach and it's pretty clear that the company is trying to avoid legal issues after-the-fact. I would expect the court would evaluate any breach under the TOS that was in effect at the time of the breach, rath…
You and a lot of the people who replied to you seem to be confusing what is unjust with what is illegal. You can't use one to deduce the other.