oh and back to topic, greece has defaulted to the ecb too...
http://www.faz.net/aktuell/wirtschaft/eurokrise/griechenland/griechische-schuldenkrise-ezb-untersucht-470-millionen-kredit-der-athener-notenbank-13681641.html
greece defaulted on an old loan, and now the ecb is investigating if that was legal or not(because it was a loan to the greek central bank and state financing isnt allowed for central banks in the eu)