Blizzard patches security hole to block hackers from sending fake updates
Theoretically, a hacker and/or website could create a domain name, and assign that name to the IP address and port where the Update Agent resides on the target PC. From there, hackers could bypass Blizzard's authentication system to install malicious software and perform other dirty deeds. Ormandy …
Source: Blizzard patches security hole to block hackers from sending fake updates

