Quidax is a digital assets exchange that allows users seamlessly buy and sell cryptocurrency with their local currency.
I have been seeing their advertisements lately, must say I am a bit shocked to see someone bringing it up here and vouching for it.
Scammers don't have a chance here, due to the high security.
I wouldn't be too over confident if I were you. The more sophisticated scammers somehow gain access to platforms that claimed were secure at one point, as scams evolve and become bigger, every platform need to constantly update security measures to ensure they checkmate any vulnerability that may be discovered.