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Researchers Find Technique To Quickly Erase Hard Drives

PORTLAND, Ore. — In 2001, an American spy plane collided in the air with a Chinese fighter and was forced to land on Chinese island. Since then, researchers have been looking for a way to quickly erase computer hard drives to deny access to sensitive intelligence data.

Scientists at the Georgia Institute of Technology (Atlanta), working with L-3 Communications Corp. (New York), said they have developed a technique for quickly erasing hard-disk drives. The team reports development of a prototype fast-erasure system to prevent sensitive information from reaching enemy eyes.

At the time of the U.S.-China incident, there was no way the U.S. crew could quickly erase hard drives on the surveillance aircraft before landing on Chinese soil. The Chinese eventually gained access to U.S. military secrets.

Erasing a hard drive usually takes hours using special procedures that repeatedly scramble information on a disk drive. Still, given unlimited resources and time, special magnetic snooping techniques can often recover at least some of the original information.

The researchers sought a method that not only securely erased information but also performed the erasure during emergency situations where minutes, not hours, were available.

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