Mass-spreading viruses can infect millions of PCs within hours. Traditional antivirus solutions may take hours or even days to protect your PC. Cyber-Defender provides a real-time, self-defending network for automatically discovering and blocking viruses, such as Sasser, in the early stages of infection. When an anomalous program starts or an e-mail with a suspicious attachment arrives, it is automatically submitted to the Cyber-Defender Alert Center and analyzed by the AppHunter engine. When the threat level is 5.0 or more, the malicious program is identified immediately. The new threat-pattern file will automatically be updated to all Cyber-Defender PCs by its global P2P network, without bandwidth limitation. All Cyber-Defender users will be protected within minutes.

Version 4.04.20.01 features minor improvements and bug fixes.

Note: The Download Now link will download a small installer file to your desktop. Remain online and double-click the installer to proceed with the actual download.