For more information about the protection features and definition sets used in Symantec Endpoint Protection 14.0, review the following documents: The certified definitions file updates the virus and spyware definitions on the Symantec Endpoint Protection Manager.
These definitions have been through rigorous Quality Assurance (QA) testing and are recommended for regular use.
The SEPM shows old virus definitions in "Admin Server Activity logs may provide details on the nature of the failure.
One possible cause is that old or corrupted virus definitions present on the SEPM prevent the SEPM's ability to update the SEP clients with new virus definitions.
In certain environments, you may want to download updates from an internal Live Update server rather than obtain updates from the Internet source servers.
Live Update Administrator 2.x may be preferable in: If you configure sites on your network for replication from another site, you can configure content updates (for example, Virus and Spyware Definitions) in the database of the primary site to replicate as part of the database.
On January 5th, 2015, Symantec Endpoint Protection version 11.0.x will reach end of support life.
Virus definitions and security updates will cease to be published to Live Update and general support for the product will no longer be provided.
For more information, see How to update content and definitions on the clients and Downloading content from Live Update to the Endpoint Protection Manager.
Over the past seven years, the threat landscape has changed considerably, with attackers finding new forms and disguises to compromise the security of their targets.
These threats are also expanding into new areas, with social media and mobile devices coming under increasing attack.
Use certified virus definitions, Network-Based Protection, or Behavior-Based Protection files to update content on the Symantec Endpoint Protection Manager when it cannot access either the Internet or a Live Update Administrator (LUA) server.
Use Rapid Release files in outbreak scenarios to combat new threats.