Actually they changed the laws so that it is no longer your money any longer, but a debt that the bank owes to you.
That's not a change, that's the whole point of banks.
The model is:
1) You lend your money to the band, ie you trade your money for a debt.
2) They then lend the money to someone else. At that point its no longer the bank's money either.
3) Hopefully the someone else pays the debt back with money, and the bank can pay your debt back with money.
4) Failing that maybe some kind taxpayer will pay to make up the difference.
5) Failing that the people who lost your money hope you'll blame the whole thing on the European Commission.