Source?
sofar im just seeing alot of users running around shouting steam hacked, without any real source
just google STEAM and it will come up on the google news feed.
I loaded Steam and noticed it was in Polish (?) and it was logged in as someone name sosna or something like that.
Is it an actual hack attempt or is Steam just being broken&buggy due to the holiday sale stress?
Who knows, change your password. better to be safe than sorry.