LiveUpdate and Your Definitions File
The team at Symantec continually works to track new virus information. As new threats are detected, information about the virus is stored as a "signature". These "signatures" are then saved in a definitions file. The definitions file is a list of the details needed to detect, remove and repair the effects of known viruses. When Norton AntiVirus scans your machine for possible threats, it is searching for symptoms that match one of the signatures in its definitions file.
Symantec updates the definitions files on the Security Response web site daily. These definition files are made available at least weekly for automatic download via the LiveUpdate utility. It is up to you to keep the definition files on your computer up to date. The installation of Norton AntiVirus is automatically configured to run LiveUpdate on a monthly basis. However, we recommend that you schedule Norton AntiVirus to update weekly or daily.
Note: LiveUpdate requires Internet access.
Last Updated: 1/24/06