Locking out hackers, cyberterrorists: Robinson Township company hopes to lead security industry.(Market Central Inc.)

Vic Sulkowski believes he has the answer to electronic espionage: a six-inch square black box intended to act as a deadbolt to hackers and cyberterrorists.

"It's not very pretty, but boy, does it work," he said.

Inside the box are proprietary secrets Mr. Sulkowski's Robinson Township company, Market Central Inc., and the U.S. Navy have collaborated on for more than five years.

SecureSwitch is a hardware product, intended not only to prevent theft by hackers who find their way into computer systems, but also to thwart attacks from cyberterrorists who use the latest electromagnetic devices, high-power microwave and radio frequencies that can shut down a system or corrupt data.

"These things are not the future," Mr. Sulkowski said. "They are now." …