No absolutley not. i just scaned my comp and no keylogger whas found. the strange thing is that this happend realy fast. i was playing on my paly. and i loged out and in for maby 4 sec and then the stuff was gone
And if some one would have hacked me. why not just change the password?
I once had a problem (well its was a blizz server issue) where I couldn't see any of my characters. It looked just like they had been deleted. I found out it was a glitch because a bunch of people on these forums had the same problem. What I did was fill out a form (its on Battle.net somehwere, its called lost character recovery, or something like that) and blizz restored them. There are certain conditions to the form though.
Very odd... Sounds almost like a server roll back, but across 8 characters? I honestly doubt that you'll even get so much as an automaded email from blizzard, but, you never know... Worth a try I guess... Sorry for your loss...