When it comes to cyberwarfare, America has a secret weapon: Georgetown University professor Dorothy Denning. Battles in cyberspace are high-tech brain races: you win by being the first to recognize the weaknesses of a new technology--often hacking it yourself--and then figuring out how to protect it.
This is what Denning has been doing for nearly three decades. In the 1970s, when most people thought information security meant locking your file cabinets, Denning devised a way for federal agencies such as the IRS to release vital information while keeping its most sensitive data secure. As computer systems became more complex, she discovered...
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