Greek default- what happens to euro banks ?


Not sure I fully understand your question... But to make it simple: usually the rule is that the Nation connected to the HQ of the Bank where you have the account might have deposit protection in place and that's not looking at the nationality of the account holder as far as I know AT THE MOMENT (and usually 100K Eur/depositor per Bank in most of the EU-countries, let me point out the word "usually"). So for example I've an account with Unicredit in Italy (big if not the biggest Italian Bank) and that's protected up to 100K Eur from the italian government... I hope this helps a bit...

Anyway each bank's website nowadays should have infos on any deposit protection scheme they are connected to... It's tough to generalize sorry!
 

If you have an account in another EU country you should be covered by whatever level of deposit guarantee that's in that country.