The Astaro Corporation introduced the <A HREF="http://www.prweb.com/releases/2005/10/prweb296392.htm">Astaro Security Gateway 425</A>--its most powerful unified threat management, network security appliance. The Astaro Security Gateway 425 builds on the strength of the 420 model by adding a NodalCore acceleration card from Sensory Networks that more than doubles virus scanning performance. It is also the only product in its category that offers dual virus scanning capabilities. Astaro's line of unified threat management appliances integrate nine forms of security to protect computer networks from a variety of threats including viruses, hackers, spam, spyware, phishing, and unauthorized content. The Astaro Security Gateway 425 can serve larger organizations or branch offices of 500-1000 employees, depending on how many security applications are deployed.