And so what? Cash can be counterfeited too. And guess what, it does actually get counterfeited! But I have never (read again, never) heard that those digits got changed by someone not authorized to do so. In fact, they just can't be changed the way you think, and, I'm afraid, that system, technically, doesn't work as you fancy it...
You seem to have taken this locution (money as digits on some obscure server) a way too literally, lol
but they can be changed with internal authorization, i've read a story about someone talking with a bank executive, he wanted to know
what to do with the money, if it was a good idea to hold them in a bank...
What to do with the money is a bit different from arbitrarily changing digits representing the money, isn't it? But in general, it is prudent to believe nothing what you hear (or read, for that matter), and only half of what you see, lol
actually it happened in in my country, it's not something so untrue, actually it's the opposite, and i'm convinced it's true, since i always had a suspect about
i think you didn't grasp my example, that guy asking what do do and the other responding in that way, it's like they can do whatever they want with your money
for example i would not be surprising if they use your money for what they want on the weekend, since you can not do any transfer...