Kali Linux is an open source Debian-based operating system for penetration testing and forensics. It comes wrapped with a collection of penetration testing and network monitoring tools used for testing of software privacy and security.
After making its influence in hacker and security circles, Kali Linux has now been published with Kali Nethunter, a version of the security suite for Android devices. The tool is a mobile distribution designed to compromise systems via USB when installed and run on an Android phone.
The tools are designed for use by an attacker who has physical access to a device — an insider threat — or someone who gains access through social engineering, tailing etc.
http://thehackernews.com/2014/09/kali-linux-nethunter-turn-your-android.html
It’s a good thing that NetHunter requires physical access; otherwise, it would have been much easier for cyber criminals to cause much greater damage with it. We must also remember that it is still a dangerous tool that can fall into the hands of an organization’s number one threat, disgruntled employees.