As we all know there are many scams out there trying to get you to part with your sensitive account information, the latest one I have received is Pretending to be from Apple. There are a few things you can do to quickly identify if these are real or not, although in most cases they will be fake.
As you may all be aware by now recently a vulnerability was found relating to SSL encryption on systems running the OpenSSL module, more information on this can be found at http://heartbleed.com.