The shift toward virtualization and cloud computing is already well underway in the federal government. But agency and industry officials warn that those migrations invite new security considerations, particularly in the form of insider threats. The government’s increasing reliance on private-sector IT contractors and the growing adoption of mobile devices and BYOD policies have in many ways blurred the lines of the traditional network perimeter. Officials stress that vendors have an important role to play in facilitating the shift to the cloud and virtualized servers and systems within the government.”]