If you don’t use them for every transaction how do they stay synchronised with the bank’s records of how much you have in your account?
When the power is out and the bank can’t check their computer, what’s to stop someone turning up with a bank book that says they have £1 in it and saying that there’s more because they transferred it online before the power went out? Or, of course, the book saying they have more than they do because they took some out before power went out?
then_three_more@lemmy.world 3 days ago
I am.
I just don’t understand how they can work.
If you don’t use them for every transaction how do they stay synchronised with the bank’s records of how much you have in your account?
When the power is out and the bank can’t check their computer, what’s to stop someone turning up with a bank book that says they have £1 in it and saying that there’s more because they transferred it online before the power went out? Or, of course, the book saying they have more than they do because they took some out before power went out?