On: Hacker wipes Romania's land registry database

[kefabean]

I always wonder how things would be reconciled if something similar happened to a bank. What would be the simplest way to ‘download’ one’s balance whilst proving that the downloaded files were signed by the bank?

[amarant → kefabean]

I'm good with starting from 0 if the bank is (my mortgage is a lot bigger than my balance)

[iso1631 → amarant]

Sods law would be the only bank not affected would be those I owe money to

[superb_dev → kefabean]

Your best chance would probably be mailed statements

[xyzelement → kefabean]

Your balance is at a bank. If the bank is gone your balance at it doesn't matter.