Originally Posted by Blizzard Entertainment
Account Sharing/Third-Party Character Advancement ("Power Leveling")
Only two people are EVER allowed to access the account (from the moment the account is created to the end of time). Who are those two people? The first is the person who set up the account in their own name (you aren't allowed to set up an account in any name other than your own legal name). The second is one (1) of the children or trustees (under age 18) of the first person. Not siblings, not parents, not spouses, not friends, not strangers.