There is an important part in this - that is that you should be alert to people who may have your email address (and therefore probably your name) asking strange questions like the name of your first school or your mother's maiden name. If they are good at their job they can create a discussion in which giving that information seems absolutely normal. Then it's off to your hotmail account to answer your security question to get your password, then trawl through your email to find where you bank, live etc etc