When people ring me I always tell them to get fucked. Nothing to do with security questions it just makes me feel better.Just never disclose any details when you have been contacted. If I get a call from someone who I feel is probably genuine (bank, Sky, Insurers, etc) and they say they need to ask questions to pass security I tell them to get fucked, they’ve contacted me not the other way around. I’ve never been scammed and by sticking to my principles hopefully never will.