Scammers! They’re everywhere nowadays. Cheats! Hackers! Frauds! Phoneys! These rogues and more want your precious wizard hats and shark guns, to plunder your Steam account of its cosmetic goodies and steal them away for their own nefarious ends. CS: GO guns and Dota 2 wizard hats can be worth a lot of money, you know. Valve are sick of folks doing this, and probably sick of the headaches it creates for their support department. To reduce this, they’re soon adding trade holds that’ll hold things up by a few days – unless both parties are using the Steam app‘s Mobile Authenticator.