First Thing is that to protect your own account
so read carefully
Privacy settings for FB read this care fully.
To many of our member faceing FB account hack this tips will prevent you from hackers.
Control Privacy When You Post
You can manage the privacy of your status updates, photos and information using the inline audience selector — when you share or afterwards. Remember: the people you share with can always share your information with others, including apps. Try editing your profile to see how it works or learn more
Control Your Default Privacy
This setting will apply to status updates and photos you post to your Profile from a Facebook app that doesn't have the inline audience selector, like Facebook for BlackBerry.
MAKE SURE YOU SET THESE SETTINGS TO CUSTOM
How you connect
Control how you connect with people you know.
How you connect > MAKE SURE THIS SETTINGS ARE SET TO FRIENDS ONLY
Who can see Wall posts by others on your profile? Note: Stories about Likes, friendships and some other types of wall content aren't included in these settings. > MAKE SURE THIS SETTINGS ARE SET TO FRIENDS ONLY
How tags work >> Set these setting as required.
Choose your privacy settings Apps, games and websites
Set these settings as required.
PROFILE SETTINGS THESE ARE IMPORTANT
1. Make sure wall is not open, so others can see what you are posting, if not on friends list
1. Make sure friends list not open, so others can see who you've added.
1. MAKE SURE THE EMAIL ID IS HIDDEN