An issue has been identified in the Symantec Endpoint Protection (SEP11) product line, whereby all types of virus and proactive threat protection definitions appear to date from December 31, 2009, 11:59pm. As a result, Windows XP, Vista, and 7 Security Centers may report that the definitions are out of date.
Clients running SEP11 are still protected, and Symantec will continue to release updated definitions as normal. However, for the time being, SEP definitions will display a date of December 31, 2009, with increasing revision numbers. The current revision number as of this writing is "r117."
Symantec is working on a solution and will update customers when a solution becomes available. Please check back on this site for the latest information.
For further information please see:
01-28-2010 (Updated): Symantec has resolved an issue in SEP11 that caused the software to incorrectly report recent virus defintions as dating from 12/31/2009. Virus and Proactive Threat definitions should now appear as dating from at least 1/12/2010 or more recently. If you are still seeing virus definitions dating before 1/12/2010, run the LiveUpdate feature in SEP11 to update.