Back in the late '60s, Warren Moore was a young man working in the IT department at apparel giant Genesco.

As a prank, Moore rewrote some code for the company's IBM mainframe to allow him to send anonymous messages to co-workers. But his joke inadvertently resulted in his message being inserted into a sales forecast report, which was about to be presented by a Genesco vice president.

"Luckily, they didn't fire me," said Moore, who now serves as an information security consultant for Convergys. "I kept my job, but it got me thinking about computer security, and it got Genesco thinking about it too. They offered all their employees a program on the dos and don'ts of working with computers."

By Dawn Kawamoto at CNET.

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