Recently Some Defense Department computer networks have been infected with a virus / worm in Pentagon US.
Fox news reported that the virus has continued to spread rapidly through military networks for nearly a week now. Wired.com reports that the virus is a worm named Agent.btz that travels through removable storage devices such as flash drives and cards, DVDs, CDs and floppy discs. Agent.btz is derived from the “SillyFDC” worm and its progeny, which date back to the early 1990s. DOD regulation of employee use of removable storage devices is also unconfirmed, but existing internal emails have substantiated these rumors.