Blue Coat Systems shares are trading sharply lower this morning after the Web security and wide-area network optimization software company reduced its earnings outlook and disclosed a management shake-up.

FORBES: Blue Coat Cuts Outlook; Shakes Up Management; Stock Slides

Blue Coat Systems shares are trading sharply lower in the after-hours session Thursday after the Web security and wide-area network optimization software company reported disappointing guidance for the July quarter.

FORBES: Blue Coat Systems Slides On Disappointing Q4 Guidance

Known as the DMZ, this is the place where network security traditionally resides: firewalls, IPS systems, Web and email gateways.

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This is a key buying criterion for customers of hosted security suites who are looking for better visibility and policy management across their network through a Web-based portal.

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