I know that what u see here at first glance is a wall of text, but please take the time to read if you are ever concerned about the safety of your battle.net account.
I am warning you guys because 2 of my friends got hacked (both without authenticators) and i almost got hacked as well (and i did not have an authenticator at the time, but now i do, after reading a brief article about how the system actually works)
i just got an authenticator and it's gg
it's unhackable, and there's 5 reasons why:
1) the authenticator code changes every minute
2) once u have used that code to log in, it becomes invalid
3) each authenticator code has a unique 14 digit long (including numbers and alphabets) serial number that is only unique to your account only
4) the authenticator code itself is 6 digits longs
5) this type of security system is widely used in real life organizations such as casinos, government, etc. etc.
all the proof and source u need to know is posted below all in one link
http://seewhatyoudidthere.com/2010/02/18/how-the-blizzard-authenticators-work-and-why-you-want-one/also i just got myself an authenticator app on the mobile phone and i've seen it for myself. it is the most robust system i have ever witnessed and i give blizzard a round of applause.
i almost got hacked too, and i've already posted that on this thread:
http://forums.d2jsp.org/topic.php?t=62737306&f=68here's the picture of what the authenticator looks like:

the blue bar below the code is the timer that indicates when to reset and provide a new authenticator code. it does this automatically no matter where u are or what u are doing.
it is a flawless system.
im not trying to suck blizzard's dick. please don't get me wrong. i like dicks but i won't suck just anyone's dick
i am trying to suck all ur dicks by trying to reassure u that this authenticator system is flawless and those stories about how they were hacked even with the authenticator are lies.
one key to note is this:
WHEN YOU ARE APPLYING FOR THE AUTHENTICATOR ON THE BLIZZARD WEBSITE, IT GIVES YOU AN OPTION WHETHER YOU WOULD LIKE TO REQUIRE AN AUTHENTICATOR CODE FOR EVERY SINGLE TIME YOU LOG IN. YOU MUST, AND I REPEAT, MUST CHECK THIS AND HAVE IT REQUIRE AN AUTHENTICATOR WHENEVER YOU WISH TO LOG IN.
This option is unchecked BY DEFAULTI believe that if people were telling the truth about getting hacked regardless of their authenticator, they did not have this option checked, and that is the ONLY possible explanation.
also, younha is beautiful.
This post was edited by Firaga on May 28 2012 03:48am