In Pictures: 9 iPhone and iPad apps that invade your privacy, and 1 that doesn't

Most iPhone and iPad apps appear harmless and fun, but don't fall for them. Some apps are virtual Trojan horses that swipe personal data when you're not looking. Appthority has put together a list of some of the worst offenders and you may be shocked to learn that a couple of the most popular apps made the list, such as Facebook and Angry Birds Star Wars. Be sure to check out the app at the end of the list for the one most honest.

Facebook

What it does: The free Facebook app is one of the most popular social networking apps on the App Store.

What are the risks: • Sends sensitive data in clear text (no encryption). • Has access to a user's Location and Contacts Book. • Uses Google Maps and transmits source or destination location values unencrypted over HTTP. • Includes file paths to source code files in debug information, stored within the app's executable. These file paths include usernames and information related to the app developer.

Note: The app now handles user authentication better when using a Facebook account to log into third-party sites or services. The app used to have authentication tokens that never expire; the authentication tokens now expire in 1 hour.

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