Kali Linux is one of the top linux distributions focused on Security and Penetration Testing. ...Penetration Testing? Not as bad as it sounds. It's derivated from BackTrack, the other top-notch Linux Penetration Testing Distribution. One of the new addditions to Kali Linux is the Nuke Patch for Emergency Self Destruction of encrypted drives. It will add a boot password you can use to destroy, rather than decrypt, the data on the drive.