SSE Symantec Email Security.cloud (September 2011) SSE Symantec Network Access Control 12.1 STS Symantec Endpoint Protection 12.1 SSE Symantec Backup Exec 2012 SSE Symantec Endpoint Protection Small Business Edition 2013 SSE Symantec Endpoint Protection 12.1 (September 2012) SSE+ Symantec Backup Exec 3600 Appliance (mid-market) (September 2012) SSE Symantec Backup Exec.cloud (March 2013) SSE Symantec System Recovery 2013 SSE+ Symantec Endpoint Protection Small Business Edition (April 2014) SSE+ Symantec Backup Exec 2014 SSE+ Symantec Endpoint Protection 12.1 (August 2014)