"Not only can we turn back the clock on an attack to undo the damage, we can also go back to any point during the attack to observe exactly how the intruder breached the system," says University of Michigan computer-science professor Peter Chen. Traveling back in time may be the way to thwart hack attacks, say computer scientists at the University of Michigan.. . .
"Not only can we turn back the clock on an attack to undo the damage, we can also go back to any point during the attack to observe exactly how the intruder breached the system," says University of Michigan computer-science professor Peter Chen. Traveling back in time may be the way to thwart hack attacks, say computer scientists at the University of Michigan. Losses from computer crime are soaring -- already approaching the US$2 billion mark, according to industry experts -- and the end is not in sight. Computer hackers, however, drop few clues at their crime scenes, leaving security experts and system administrators with slim options for accurate detection.

Using a time machine to watch the crime unfold and nail the perps red-handed may sound like an outlandish Hollywood movie plot, but going back to stop a hack is precisely what Peter Chen has in mind.