Someone hacked into my account and played with Lee Sin

so i got some wierd msgs about my account logged in on another pc i though its a bug untill i saw that i have some new skin fragments the sivir and lisandra ones then i logged off for a couple of hours and i discovered that the "hacker" played a game with lee sin XDD omg thats halerious if you see dis say hi XD im changing my password now lol edit: i just realized it was a ranked game and he lost XDDDDDDD http://imgur.com/Cmk02ij http://imgur.com/21HFCMg [slayer-pantheon-thumbs]