Invalid ID: 76561197968521319 (Kurwa :3) Hijacking, phising

Victim:
| steamname: Ordinary Witch
| steamID32: STEAM_0:0:36878789
| steamID64: http://steamcommunity.com/profiles/76561198034023306
| customURL: http://steamcommunity.com/id/hidekins
| steamrep: http://steamrep.com/profiles/76561198034023306

Scammer:
| steamname: Kurwa :3
| steamID32: STEAM_0:1:4127795
| steamID64: http://steamcommunity.com/profiles/76561197968521319
| customURL: http://steamcommunity.com/id/chernokurwa
| steamrep: http://steamrep.com/profiles/76561197968521319

Accomplice (steamrep banned):
| steamname: Chiller
| steamID32: STEAM_0:1:14491658
| steamID64: http://steamcommunity.com/profiles/76561197989249045
| customURL:
| steamrep: http://steamrep.com/profiles/76561197989249045

Screenshots:
http://puu.sh/6nMWX
http://puu.sh/6nMZV
http://puu.sh/6nMQo

What happened:
The user Chiller added me and messaged me about adding his friend, who couldn't add me, and provided a fake Steam community website, which asked for my user and password. I got hijacked , and traded two of my items into his account using trade offers. I managed to cancel the first trade offer he made through my web browser, but couldn't cancel the second one as it was a live trade and not an offer.