What is symantec_security2008.exe doing on my computer?
symantec_security2008.exe is a process
Non-system processes like symantec_security2008.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.