For those of you who have a Samsung Note 3 you will know that Samsung Note 3 comes with Knox and Knox is supposed to be private and supposed to keep your stuff confidential. Up until this last Facebook update your email accounts in Knox were confidential but after this last update you will find that in this last update Facebook has managed to hack into the Knox and retrieve all email accounts in your Knox account. WTF??
As an example, set up 3 different email accounts in Knox and then log out of Knox and go back to your personal account. In your personal account you will have one email account which will be your Gmail account. Now go to your General,settings,Applications and then clear cache and delete Data. After you do so you will nothing there. Once you have done this exit and go back to open up your Facebook application and you will see that it is searching and it will already have one of your email accounts from your Knox account for login Delete that whole line and then hit any first letter of the other email accounts of your other email accounts in your Knox and you will find that it will pull up all 3 of them WTF? Hackers and thieves they are. When they allow you to delete cache and data in General under applications they are actually not deleting anything.
Prior to this last update this was not possible. This was not mentioned in this last update.
Two things learned, Knox is not safe and Facebook is as evil as before.
Last but not least