Where does your business expend most of its resources to prevent malicious code attacks? If your company is like those for which I have worked, most of the time and effort is spent on the network perimeter and servers. But what about those ubiquitous end-user devices?

Desktop PCs, laptops, and Personal Digital Assistants (PDAs) are everywhere and usually connect to sites outside your security perimeter. In addition, more than 50% of your critical business information is likely stored on these systems (Sussman, 2004); they are also often the home for worms, viruses, and other malicious code. This makes end-user devices perfect portals for attacks against your network.

In this article, we explore many of the potential threats, vulnerabilities, and safeguards surrounding end-user computing.

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