If it's stolen from a bank, it's their obligation to recuperate you.
FWIW, most countries have a type of insurance if a legally operating bank goes under, at least some of your savings are protected (eg. in Serbia that's up to 50kEUR).
While I can't speak for other places, in the UK, if you haven't been careless and report quickly enough, your refund is not dependent on anyone being caught.
That's if it was stolen from you directly.
If it's stolen from a bank, it's their obligation to recuperate you.
FWIW, most countries have a type of insurance if a legally operating bank goes under, at least some of your savings are protected (eg. in Serbia that's up to 50kEUR).
While I can't speak for other places, in the UK, if you haven't been careless and report quickly enough, your refund is not dependent on anyone being caught.