There are two types of old friends: the ones that you look forward to catching up with over a cocktail and a curry, and the ones that steal your data and leave you weeping and ashamed in the eyes of the world. Well, it seems our old pal Heartbleed has made another appearance, and, if you’re unsure which category it falls into, let’s just say that it doesn’t deserve a madras moment with us. The second largest profit-making hospital chain in the US has just announced a mega-breach, knocking around 4.5m patient records for six, and word on the street…