PC Magazine shares two worthwhile privacy settings that will enhance both privacy and security in using Facebook … and most importantly always use an “air of caution” in entering any sensitive information into this environment in account settings or public comments
QUOTE: Earlier this week, TechCrunch reported that an app developer had scraped around 2.5 million phone numbers using Facebook’s Graph Search. These were all from users who left their contact info public. You’re smart; you’ve configured Facebook so that only your friends can view your contact information. It turns out, though, that this isn’t sufficient to keep hackers from getting access to your contact information. Cloudmark’s Andrew Conway explains in a blog post that even when your info is private it may still be accessible
Double-Lock Your Profile: To make sure you don’t become a victim, log into your Facebook account and click the padlock privacy icon at top right. Check first to be sure “Who can see you future posts?” is not set to Public. Set it so only Friends can see your posts; you can also limit visibility to a subset of your full Friends list. Now, to hide from phone-scraping hackers, set the two “Who can look you up…” options to Friends. If you’re feeling expansive, you might set them to Friends of Friends. Just don’t leave these settings Public, and turn off search engine indexing as well.
For more advice on securing your Facebook profile, see It’s Time to Check Your Facebook Privacy Settings.