BlackICE teams a personal firewall with an advanced intrusion detection system to constantly watch your Internet connection for suspicious behavior. BlackICE responds immediately by alerting you to trouble and instantly blocking the threat. BlackICE automatically detects and blocks attacks through a comprehensive inspection of all inbound and outbound information to your computer. And BlackICE PC Protection is constantly working to secure your dial-up, DSL, and cable modem from hackers 24 hours a day, every day of the year.
BlackICE's Application Protection quickly and invisibly defeats dangerous programs that attackers deliver through instant messaging, email, or even your Web browser! BlackICE stops these destructive programs before they do harm-like damaging your PC or launching email attacks against your friends and co-workers.

BlackICE PC Protection scans all inbound Internet traffic for suspicious activity on home or small business systems. BlackICE PC Protection features Application Protection, an exciting new feature designed to shield your PCs, laptops and workstations from hijack by an attacker, and protects you from Trojan horse applications, worms and other destructive threats.

BlackICE Server Protection SOHO delivers the same bulletproof protection as our award-winning BlackICE PC Protection product with additional defense against specific attacks directed at Windows NT or 2000 Servers.

由于沒有防火墻的家庭用戶來說，BlackICE是一道不可缺少的防線;而對于企業網絡，它又增加了一層保 護措施--它并不是要取代防火墻，而是阻止企圖穿過防火墻的入侵者。BlackICE集成有非常強大的檢測和分析引擎，可以識別200多種入侵技巧，給你 全面的網絡檢測以及系統防護，它還能即時監測網絡端口和協議，攔截所有可疑的網絡入侵，無論黑客如何費盡心機也無法危害到你的系統。而且它還可以將查明那 些試圖入侵的黑客的NetBIOS(WINS)名、DNS名或是他目前所使用的IP地址記錄下來，以便你采取進一步行動。