Guys..Samsung doesn't introduced any security app in 4.1.2 Jellybean Stock ROM so I've selected Parent Control app and modded it
to look like Samsung Knox.Now it looks more cool It contains all security features like password protection of apps , block any website, Sandbox container,
Home screen with customized features for kids.
Steps of installation :
1. Download and Extract the app.
2. Install it as a normal apk.
Download Link :