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Computer security training, certification and free resources. We specialize in computer/network security, digital forensics, application security and IT audit.

Beyond Security will help you expose your security holes and will show you what the bad guys already know about your hosts and network.

The Metasploit Framework is the open source penetration testing framework with the world's largest database of public, tested exploits.

Black Hat Conventions put you face to face with people on the cutting edge of network security, and with no vendor pitches!

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Antivirus BitDefender - award winning virus protection software for your computer security. Protect your business and secure your PC from the latest viruses now!

国内最大的免费安全平台。提供360安全卫士、360免费杀毒软件、360木马查杀工具、360安全浏览器、360保险箱及各种其他免费杀毒软件包括NOD32、卡巴斯基等。360安全卫士拥有查杀木马、清理恶评插件、免费杀毒、修复系统漏洞和管理应用软件等功能。

Computer security and information security: advisories, exploits and vulnerabilities database, articles and security news.

Computer security and networking portal.