#6 - Oct. 7, 2010, 7:46 a.m.
Based on your login history, Grishnákh, everything appears to be normal. There is no exploitive activity on your account.
Did you share your account information with anyone?
I recommend you keep your account information highly confidential and consider getting a blizzard authenticator.
Battle.net Authenticator FAQ -
http://us.blizzard.com/support/article/24660 Battle.net Authenticator (United States) -
http://us.blizzard.com/store/details.xml?id=1100000822 Battle.net Authenticator (Canada, Australia, New Zealand and Latin America) -
http://us.blizzard.com/store/details.xml?id=1100000823