Judaism prohibits this denial of faith even on penalty of death.
Actually during WW2 , I have read many Jewish holocaust memoirs , where the Jewish rabbi & ( And Jewish Council ) gave permisson for the Jewish adults & children to be put in Catholic covenants under FALSE Christian papers in France , Poland & Italy. Also the JOINT was aware & helped too ! Many different Jewish rabbi's said to preserve the Jewish race from extinction The Jewish people could pretend to be Christians . In some Jewish holocaust memoirs the Jewish person ACTUALLY posed as A Muslim . If you look at SOME Hungary Jewish memoirs you can find the info !!!