Android 4.3 on S4 gives bogus security message from Samsung hidden app Knox. How to remove?
Since I updated my S4 to Android 4.3, I have been receiving daily notifications that indicate an app is trying to over-reach its security permissions. From what I have found by searching Google for that message, it is the result of a hidden Samsung app called Knox. Other than rooting the phone and doing some jiggery pokery, there is no way to remove or disable this app that I have found.
I'll be calling AT&T support later today to complain about this, but it appears that either the 4.3 release wasn't really tested, or that AT&T believes this behavior is acceptable.
This message shows up as a notification. When you select the notification, you get a dialog with the heading Security Information, and the text "An application attempted to access system on your device without authorization. This attempt has been blocked. Changing your security level to normal may solve this problem. Deleting applications obtained from unauthorized sources may improve security."
There are two buttons - Cancel and View Apps. You might think the View Apps button would tell you which app triggered this, but it does not. However, if you long-press on the security dialog, you should get a 3rd button, labeled Settings. Going into this (apparently, I haven't tried this yet) tells you that the offender is this Knox program.
There's a long thread about this, with no resolution, at the Android Central web site. If posting the link is acceptable, here it is: