Protective Layers: Securing Corporate Networks

With so many types of malware stalking the Internet, companies pile on their e-mail defenses.

When the Nimda worm struck in 2001, one of its many victims was the Virginia Hospital Center in Arlington. The worm crashed servers, erased data and forced VHC to hire a consultant.

"It deleted files and brought a couple of servers to their knees," says IT director Mark Rein, who joined VHC a year after Nimda struck. "We had to have a company come in and eradicate the virus."

Fortunately, the virus didn’t attack patient data. But it did provide a wake-up call, making VHC aware that it needed better e-mail security. There wasn’t a silver bullet that could stop all viruses and — nearly as bad — spam, so VHC opted for multiple overlapping defenses.

News Story by Sue Hildreth

Full Story: http://www.computerworld.com/securitytopics/security/story/0,10801,103034,00.html