1. Monitor suspicious activity/links.
2. Remove friends as appropriate.
3. Keep your wall clean.
4. Turn off Facebook Chat.
5. Change your password often.
6. Be careful who you share your password with.
7. Hide your year of birth.
8. Keep your private info private.
9. Adjust your privacy settings.
10. Protect your mobile device.
Step 1: Make Friend Lists
Step 2: Who Can See What on Your Profile
Step 3: Who Can See Your Address and Phone Number
Step 4: Change Who Can Find You on Facebook via Search
Step 5: Stop Sharing Personal Info with Unknown Applications
via readwriteweb