#Tech: Most popular #Android app caught harvesting users contacts: Facebook

"The first time you launch the Facebook application, even before logging in, your phone number will be sent over the Internet to Facebook servers. You do not need to provide your phone number, log in, initiate a specific action, or even need a Facebook account for this to happen."

"Unfortunately, the Facebook application is not the only application leaking private data or even the worst" - Symantec

I'm glad i use iPhone. I think that's the benefit of having a closed system such as the iOS.