Steam Account Thieves
Beware.
This isn't the first time this has happened to me, but probably wont be the last. Someone claiming to be employed by steam added me to their friend's list, and as soon as I accepted, they fed me a bunch of crap about how they needed me to give them my account info. This was one of the more clever attempts at it, but it still failed miserably.
A person named "Fun-Time" added me to his list, and promptly changed his name to "VAC Moderator." He then sent me this message "VAC Modertaor: Hello, The Valve Anti-Cheat Security System has detected multiple ip usage on this steam account, this may be due to public use. It is required to visit the website
http://steamtech.awardspace.com, to validate ownership, this account is in danger of being shut down unless immediate actions are taken. To ensure our users safety we are entitled to request the required information in order to verify you have full control of this account. Please visit
http://steamtech.awardspace.com and fill our the necessary fields and carry on with your activities. Verification is a necessity, if you do not co-operate this steam account will be disabled within 24 hours. If you have any questions about our website, leave your email and
mail@steampowered.com will contact you."
Beware, valve will never ask you for your account info.