The ECB wants to unearth potential risks hidden in balance sheets before supervision is centralized under its roof from November 2014 as part of a European banking union drawn up in response to a debt crisis exacerbated by massive bad property loans in countries like Ireland and Spain.

 
The provisional list of banks to be reviewed includes 4 Greek banks: 
 
Alpha Bank, S.A.
Eurobank Ergasias, S.A.
National Bank of Greece, S.A.
Piraeus Bank, S.A.

Source: Reuters