STS Symantec Endpoint Protection 12.1 ASC Enterprise Security Specialization (November 2010) STS Symantec Data Loss Prevention 11.5 SSE+ Symantec Endpoint Protection 12.1 (September 2012) SSE Symantec Endpoint Protection 12.1 (September 2012) SSE Symantec Messaging Gateway 10 SSE Symantec Data Loss Prevention 12 SSE+ Symantec Data Loss Prevention 12