Securing networks has rapidly taken center stage among most enterprises as the threat from increasingly sophisticated attacks becomes more complex and costly to manage. According to the research group IDC, enterprises worldwide spent an estimated $32.6Bn in 2005 on network security but are still faced with an ever-changing landscape of new security threats. Traditional network defense solutions such as firewalls and intrusion prevention devices must be supplemented by secure content management devices in order to block the full range of sophisticated attacks including viruses, spyware, spam and phishing.

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