Exclusive analysis: Network threat management based on cloud computing

Why is the current web threat more difficult to deal with than the threats of the past? Mainly embodied in the following: 1. Number。 In 2008 alone, malicious code grew at an unprecedented rate of 200%. 2. Rapid change. Attackers know how to change malicious code to bypass the existing security defenses. 3. Targeted stealth attacks. Some malicious code is dormant for several months before it is activated, while others are targeted at specific populations, geographic locations, industries, or businesses. 4. Trust. Users trust legitimate Web sites and social networks, so it is almost impossible to stop when users are infected or used to start an Internet program. For all of these reasons, traditional, signature based security tools are useless. There are too many signatures to deal with, and the signature database is very congested and performance is affected. So what's the best solution? A network threat management solution based on cloud computing. Like Blue Coat Systems, Cisco and Trend Micro are already starting to offer solutions to this pattern, and it is believed that in the near future this pattern will soon be a key component of most threat management systems. In this model, cloud based intelligence is used as an additional layer of defense to support field equipment and endpoint proxies. In addition, cloud based Web threat management also utilizes the Metcalfe (Metcalfe) Law (Metcalfe Law is a development of the network technology, Metcalfe Law is the founder of 3Com company, computer network pioneer Robert Metkav proposed. ): Refers to the network value of the number of users to increase the speed of the square. In this case, the user analyzes the Web threat experience and intelligence with each other. If your computer's Internet security software or signature downloads affect your system's startup time or network performance, it has been stated that the signature based pattern is not sustainable. Cloud computing has proven to be a very effective way to manage web threats, and performance, coverage, and scalability issues will drive cloud security fast forward.