How many block confirmations are needed for Bitcoin Cash?

The Bitcoin Wiki (https://en.bitcoin.it/wiki/Confirmation) recommends 6 block confirmations to be safe of double spend attacks. Is it the same for Bitcoin Cash or are more confirmations needed due to a lower hash rate? I mean theoretically 1 block confirmation should be enough but is there a "consensus"?

Also I read that 0-conf is more resilient to double spend attacks compared to BTC and LTC, why is that?