I have been trying to find out as much as possible to secure my mac from prying eyes. From Keychain lockouts to using disk utility for compressing files and locking them with encryption. Don't use file vault, unless your an expert. Some say once you use file vault you can't quit it.
As far as Viruses go; from what I'm reading, it's mostly malware, which is minor and comes threw email. Just don't accept attachments from those you don't know. I use a freeware application called "ClamXav" for mac. And if your going to use bootcamp, you will probably need a virus software for your windows. JonL
Link to watching internet security issues.
Keychain access/passwords(show Nov 2nd)
Protect your mac/viruses
Disk utility secrets
The Key to Keychain
Encypt files for safety