Hmmm thats a tough one for Blizzard, since they are supposed to be the leading role-models in the MMO industry....
I'm glad we have an awesome engineering team. Not that we will ever be completely immune to attacks, but I'm glad they put extra effort into security measures beforehand instead of afterwards....I mean to say that I'm glad Aeria looks ahead to what Could happen, instead of waiting for it to happen.
It's not as easy as you'd think to protect yourself. Some attacks can't be stopped because they've never been used before (e.g Zero-day
Aeria has weak
security. If they used free tools like Metasploit, Tenable Nessus, Nexpose, etc... they would already know that. There was a reason that AGE reset everyone's password months ago... but when you're not in the spotlight like Blizzard, it is a lot easier to just sweep things like that under the rug. On top of that their site use to be loaded with XSS/SQLi vulnerabilities. It still is to some extent. If AGE had a large player base... perhaps one the size of Blizzard's... I'm sure it would be much more apparent how bad their security actually is.
'Cyber defense' is mostly a reactionary stance. While you may be able to get ideas by watching various 'hacker' chatrooms, browsing exploit-db, or perhaps taking a dive into the so-called 'deep web' or whatever.. It's still very hard to predict the next attack vectors. Luckily though, there are large companies (like Blizzard & Sony) to take the hit so everyone else can proceed to patch their systems and improve their security before they get hit as well!