Yes, well what they are actually doing is forcing you to use Samsung Knox...Google it and you'll find hundreds of threads called "HOW DO I GET RID OF KNOX?" littered across every Android forum, for every Samsung device ever made...it was bloatware installed on every Samsung phone and tablet... and apparently Samsung was tired of people not using it so they've now removed the simple Private Mode function so there is no other choice but to use Knox (or use a 3rd party app). Knox is easy to uninstall, but there is no built in replacement that I can see.