I am currently running NE3 firmware on my S4 Active. It's rooted via Towelroot. When I opened SuperSU it said something about KNOX detected do I want to disable it? I of course did and clicked yes. It said that it was disabled successfully, however I still see the lovely "Security Policy Updates" notification several times a day. Aside from some bloatware removed I haven't messed with KNOX. I had no problem disabling it on ML2, is there a different method needed for 4.4.2 NE3?