Some people in this group, including me, have received a message from someone named Angel or Dark Monkey linking a site that claims to be giving you a free Steam game if you enter your account info.

DO NOT, FOR ANY REASON, CLICK THIS LINK.

IF YOU DID CLICK THE LINK AND POSSIBLY ENTERED YOUR ACCOUNT INFO, IMMEDIATELY CHANGE YOUR PASSWORD AND SECRET ANSWER.

The website is a phishing scam that is trying to steal your account info. If you do get a message from this person, or receive any kind of link that claims to be giving you something free, or generally just looks fishy, do not click any link they give you and REPORT THE PERSON.

More info here, thanks to CaptNumbNutz: http://www.hardforum.com/showpost.php?p=1035418034&postcount=117