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.

Symantec holds at least one patent related to LiveUpdate: Use of Polymorphic Package Files To Update Software.

In Interactive mode, users decide which updates to download and apply.

Once all updates are downloaded, Symantec LiveUpdate will begin the process of installing them.

[4] Intelligent Updater is an alternate delivery method for virus definitions, which consists of an executable file that can be downloaded and run manually.