I gots scammed outa 120K

[Sam DeathWalker]

Its not against the ToS in the sence that Blizzard will ban you or do anything to you if you are the victim.

They will not cover your loses in general though:

http://us.battle.net/wow/en/forum/topic/2593043698


With the introduction of the new Winged Guardian mount we have seen an increased number of reports from players falling victim trade scams. We'd like to take this opportunity remind everyone that the transfer of these items for in-game gold (virtual property) is not supported. While our In-Game Support department may be able to investigate these matters and take appropriate actions towards the scamming account, we are likely unable to assist with the reclamation of any virtual currency exchanged for the product.