Since I can not predict the future I can not answer the question that torments many last time.
Seeing history in any country went bankrupt without the IMF, the world has lost its deposits. But the past does not bind the future.
The most significant risks, which many analysts say growing up is that of bankruptcy. The question is whether we get out of the euro depreciation and go to all deposits automatically converted to the new devalued currency. Note that if Argentina did not escape nor the foreign currency accounts.
Where we have our money, there are risks even at home or in a foreign bank. Our choices are many:
1) We leave the Greek banks
2) We put in a box
3) buy gold
4) Buy Property
5) Remove the outer
6) We put the mattress
I propose an option and each option has a cost and running a risk. Let everyone decide for themselves whether to do the above or some combination of these.
On the safety of banks, I think that all banks operating in Greece provide the same security.