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Extrusion Protection to Plug Leaky Desktops

Extrusion protection is heading for the desktop. Once defined by gateway appliances that monitored Web, e-mail and IM traffic for sensitive information slipping out of the enterprise, a new crop of products put agents directly on the desktop to plug potential leaks.

The key driver for host-based EP: Companies can enforce information protection policies even when PCs aren't connected to the corporate LAN--a truck-sized hole in network-based protection schemes. Agent software sits on individual computers and monitors the use of fingerprinted data. It will log, alert on, or block inappropriate actions, such as unauthorized e-mailing or copying the data to a USB drive.

McAfee became the 900-pound gorilla in the space when it announced its Data Loss Prevention Host at the RSA conference. Provilla, a start-up, also launched a host-based EP called LeakProof in early 2007. These new products join existing solutions from companies such as Oakley Networks and Vontu.

Although not the first company to market, McAfee's presence signals that enterprise buyers are ready to spend significant money. Look for brand-name competitors to respond by launching their own products or by acquiring smaller players. --Andrew Conry-Murray