I was reading an article this morning on PC computer security and it had a checklist of things to do. Three of the items listed might be helpful to L4M users simply because they can help increase your computer's performance:
http://www.infoworld.com/d/security/your-handy-pc-security-checklist-462
Added "Apple’s Product Security page includes Mac OS X Security Configuration Guides; disabling unneeded items is a good idea along with keeping system up to date." to Slow Performance section on Mac Troubleshooting page.
Apple has Mac OS X security features.
Keep Smiling [:)]