If you rent a bank window, the content does not constitute property of the bank to be liquidated in a bankruptcy. It is like you rent an apartment if bankruptcies go and sell things of course ... your tenant is not fully protected by the window. For example, in cases of burglary, flood, fire, earthquake, the bank gives you a small compensation. The National, for example, gives 3000 euros and an additional premium of around 30,000 euros.