There are all kinds of ways your behavior on Facebook can get you in trouble. Friending people you don't know, sharing details of new purchases, your address and vacation plans can come back to bite you. Here, a list of what not to post on Facebook, from Linda Criddle at the Safe Internet Alliance.

Don't give the public--and the thieves hiding in it--detailed information about you.

Even simple things like posting your full name and address can make it that much easier for ne'er-do-wells to find you or steal your identity. Stay safe by keeping your identity and location private.

Keep your photos private!

A picture is worth a thousand words--and what your pictures spell out includes your age, your home, your friends, family and more. Thieves can, and will, use information from pictures to customize scams targeting you, break into your house, even identify and threaten your loved ones.

Don't brag about your new iPhone 4.

Sharing information about your valuables on blogs and social networks lets thieves know who to target. But it's less likely robbers will break into your home if they don't think there's anything worth stealing inside. So keep information about your possessions private.

Think carefully before friending someone.

Keep in mind that theft is often carried out by someone you know. True, organized crime rings do a lot of damage, but many people are targeted for robberies and ID theft by people with whom they're acquainted. Remember that when you friend someone on Facebook, you may be letting them see private information they can use against you.

Don't broadcast your vacation schedule.

Don't tell everyone on the social network you're going to be away on vacation for two weeks! You're only saving thieves time and gas looking for empty, unguarded homes to rob. Keep information about your travel and daily schedule--from island getaways to sports practice--private.

Ditch the obvious or easy password.

Strong passwords really are your best friends. Cybercriminals aren't going to waste their time trying to hack your account when they can find hundreds of others with easier-to-break passwords. Make it hard for thieves, and you'll send them packing.

Be careful about leaving information on bridal and baby shower registries.

Thieves browse these to find out what gifts have been ordered for you, and when they'll arrive. Gifts requests also let people know about your economic status, and if you having anything worth stealing. Blog postings on registries often contain information about when you'll be away on honeymoon or at the hospital. Memorial sites are a risk, too. Make sure the sites you use let you set privacy boundaries.

Use antivirus software.

There's a good chance you store your security codes and financial information on your home computer, so make sure to protect it! Using a computer without antivirus software and firewalls is like handing thieves the keys to your house--and your checkbook.

Guard your emotions.

Thieves pretend to share your joy or offer a shoulder to cry on, playing on your passions to trick you into sharing personal information. If you mention you've got money problems, scammers send a get-rich-quick scheme. People who want to romance you might be building your trust to break it. Life's a poker game, and the more you show your hand, the easier it is for someone to hijack your identity or drain your account.

Mind your credit report.

It's free to get a report on your credit, and it only takes a phone call to freeze it so that someone can't take out credit in your name. Remember, the longer you go without monitoring your credit situation, the worse damage an identity thief can do.

Take your time.

Thieves prefer victims that act impulsively, without thinking. When a pop-up tells you your computer is infected, scammers want you to download their malware-ridden "anti-virus" software. Criminals hope you'll click on their "save money" and "lottery winnings" offers without pausing long enough to realize it's an obvious lure. Think things through, do a little fact checking. You'll avoid spyware and malicious links and keep your personal information safe.

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