Having your account locked isn't an uncommon problem -- and it doesn't necessarily mean your account has been compromised. Because Blizzard is trying to stop hackers in their tracks, doing anything that makes it look like you aren't the one playing the game -- like logging in from an unusual location -- can trigger a lock. So what's a gamer to do when hit with a locked account? Fortunately for all of us, Blizzard CS representative Araxom has explained how to avoid locked account woes -- without even getting in touch with customer support.
An easy fix? Change your password from your new computer or new location. This requires you to authenticate with Blizzard -- and answer your secret question -- so the servers are sure that you're actually you. Another helpful tidbit: have an authenticator (or authenticator app) attached to your account and SMS protect enabled. These helpful security features not only make it harder for your account to get stolen -- they can make it clear to Blizzard that your account is in your hands, even if you're logging on from a new computer.
For more details and tips, check out Araxom's thread on Reddit. And if your account actually has been hacked, it's going to take a few more steps, but we'll walk you through it.