#28 - Feb. 9, 2010, 5:16 p.m.
Battle.net is a perfectly fine platform. It is not less secure. It is not responsible for the compromise of your account. Can Battle.net accounts be compromised? Yes. They can, if the proper precautions are not taken. Is it impossible to secure a Battle.net account? No, it is not. There are many ways to protect oneself against compromise.
In order for an account to be compromised, its login information must be learned by an unauthorized party. This can happen in multiple ways. It's possible that a computer from which you accessed your account (at any time) possessed a latent infection. It's possible that you accidentally responded to a malicious phishing email or visited a website which contained embedded malware. It's also possible that your registered email address was compromised separately, opening a doorway to your Battle.net account.
I know it's much simpler to point the finger at Blizzard Entertainment than considering the above possibilities. It's important that you come to terms with them, though, because if you deny personal responsibility, you may neglect to take key steps that can bolster your account's security. In the end, accepting that compromises occur client-side is the first and most important step to protecting your account.
As always, we'll be happy to help you reclaim your account (if necessary) and recoup any losses your characters may have suffered as a result. All that we ask in return is that you focus on securing your computer, account, and registered email address to help prevent repeat compromise. This is something only you can do. Acquiring an Authenticator was an excellent step, but please do not let it bypass safe browsing habits and security practices.
I know this must have been a very troubling time for you, Masspanic, and for that I am sorry. If you have any questions or concerns, please let me know and I will be happy to assist in any way that I am able. :)