Microsoft Security - Sicherheitsportal (http://www.microsoft.com/germany/sicherheit/default.mspx)

Watchguard Firewall Support Site
(http://www.watchguard.com/support/)

TEC channel Virenticker
http://www.tecchannel.de/sicherheit/viren-ticker/

Heise Online - Security und News
http://www.heise.de/

Cisco Iron Port Support Site - Supportportal
http://www.ironport.com/de/support/

Debian GNU Linux Sicherheitsportal
http://www.debian.org/security/

Typo3 Release Notes , Latest Version
http://typo3.org/download

VMWare Webseite, Virtualisierung Desktop und Server Lösungen
http://www.vmware.com/de/

Citrix Download Portal
http://www.citrix.com/English/ss/downloads/index.asp