Angry ex-employees can do real damage to your company's computer networks. Here's how to make sure pink slips don't lead to meltdowns. But these days, "many companies are reliant on their employees having access to their networks," points out Black. In 1990, a company might have had a few system administrators and a handful of other technically savvy personnel, whereas now they employ firewall engineers, database engineers, router operators, Java programmers, and many other technically proficient specialists. Any one of them might possess sufficient knowledge to do serious damage.
"If somebody who has access to one PC gets laid off, they can't do all that much. If you're thinking of downsizing your systems people, your risk factor goes up dramatically," says Alan Brill, a senior managing director in the information security group at Kroll Associates. "You're dealing with people who have the access and the knowhow to do serious damage."
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