Your most effective protection against today's huge volumes of threats from the web or emails. Based on ESET NOD32 Antivirus, it delivers proactive protection against new attacks during the critical hours when other vendors' products are not aware a new attack even exists. It also blocks spam and includes personal firewall. ESET Smart Security is lightning fast. Unlike other Internet security products, it will not slow down your system or inconvenience you while you work or play. Version 4 is faster, easier to use, and delivers stronger protection.