STS Symantec Endpoint Protection 12.1 SSE Symantec Backup Exec 2012 SSE+ Symantec Backup Exec 2012 SSE+ Symantec Endpoint Protection 12.1 (September 2012) SSE Symantec Endpoint Protection 12.1 (September 2012) SSE Symantec Protection Suite Small Business Edition and Enterprise Edition (October 2012)