What does this mean?

[Scubadiver]

So blizzard locked my account cause a change in my access pattern. This happened just a few hours after using honor buddy in BGs. Saids I can unlock it just have to change password.

 

[enoh]

Don't worry, I think this is the auto-lock security. But be sure you've not been hacked guy.
Usualy this message comes when your account has been logged with a weird IP. Like in China.

 

[Scubadiver]

But what has me weirded out is it happened close to getting honorbuddy...not accusing anyone, but does honor buddy make your account work from a different ip?

 

[enoh]

No. HB doesn't make your account work with a different IP.
Change your password dude

I think there is no connection between this lock and HB.