Spyware on a windows workstation can be used to compromize even the most secure systems . So watch out for spyware.
These systems are operated by ordinary people who can at the best of times be stupid.... Here is a story about a unclassified PDF sent from the Pentagon about the Italian intelligence agent, Nicola Calipari, was shot and killed by U.S. troops at a checkpoint. It had sections containing classified information blacked out. What they hadnt realised was that by doing a copy from the pdf and paste into and text editor the blacked out text was uncovered.... full story here... http://www.computerworld.com/industrytopics/defense/story/0,10801,101582,00.html I dont have more than 10 posts so I cant have a live link...