Why is it "illegal" to backup my games?

[Mr Khan]

Galaki said:

If it's not illegal, then why it is impossible for me to play from backup without going through modding my system? Which is not what I wanted to do.

Just because you're legally allowed to do something doesn't mean the corporation is obligated to make it easy for you to do so. Where they cross the line is when they cross away from "not making it easy," to, "altering or destroying your private property" in pursuit of those goals