RockYou suffered one of the worst data leaks of the year last year with some 32m accounts hacked through its lax security policies. A study of the passwords showed many users were just as lax – the top 5, in order, were: ‘123456’; ‘12345’; ‘123456789’; ‘Password’; and finally the rather heart-warming ‘iloveyou’.

If you recognise one of those, it’s time to update your password…