How do I remove the Security Warning from my Galaxy S4?

After updating my cell phone to 4.4.2
Frequently Security notice message troubles me a lot.

Security notice says like this " Unauthorized actions have been detected. Restart your phone to undo any unauthorized changes"

After restarting same notice will trouble me a lot.
So, please suggest me.

Model No. = SAMSUNG SGH-I337; AT & T

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