Organisations that have so far embraced wireless technology and applied it to their business, have seen tangible results such as increased sales, improved customer service, a strong competitive advantage and, important for the financials, rapid return on investment.

For all these reasons, predicted growth in the WLAN market is from $2.4 billion to $5.2 billion by 2005.

However, according to Chris Davis, executive at NamITrust, the enterprise security division within NamITech, WLANs have distinct security implications for organisations. "It is exceptionally difficult to control physical access to a WLAN," say Davis. "They can be purchased and deployed with minimal cost and effort, possibly by individual departments that have not consulted with the IT department. Of course, this runs the risk of creating vulnerabilities on the overall security perimeter."

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