The US Department of Defense has approved the use of Samsung phones running "Knox," a hardened version of Android.
The United States is preparing a modified version of Google's Android operating system to allow soldiers to use smartphones.
The fourth pretrial hearing for Army Pfc. Bradley Manningday put the spotlight on more than 100,000 sensitive documents and conversation logs between Manning and a former hacker. This case raises the question of how organisations can contain the considerable risk presented by rogue employees?