This is a very bad news for facebook. I do not want to believe that it is true.If true, facebook will lose a lot of users.Because people will lose confidence in Facebook.
I agree with you, this is bad news about facebook, and if it really happened, its impact on facebook users, facebook users will decrease because people think facebook is not safe.
Facebook did take a huge hit because of this their stock fell significantly. Some paranoid people are saying that Facebook sells data to NSA and such, don't if that's true but you can never to sure. IIRC Edward Snowden also accused Facebook of the same.