Norton LiveUpdate is a utility developed by Symantec Corporation that downloads and installs security updates (such as spyware, firewall, or antivirus signature files) and software patches. LiveUpdate can only apply updates for a particular version of Norton; it cannot however upgrade a version of Norton to a later version (for example Norton Internet Security 2006 to 2009). To upgrade the product to the latest version, one would have to go to a separate website.