Goodness, the hackers don't know enough to cage and steal my pets, do they?
I had the exact same thought a day ago when I saw this news on WoWInsider. Since most of my gold is invested in mounts and pets I felt very secure. Then I remembered the caging mechanic and wondered how intelligent these SOBs really are. Sadly, if they are crafty enough to hack your account chances are they will know about caging pets as well.
Unless they are not able to get into your account in-game and cage the pets and then sell them...
Are you able to actually do that from the Mobile App?
This sounds like something that is limited to JUST the Mobile App, and not the actual game itself.