Cloud cloud, refers to all the computers in the network, which is a *** enjoy the concept of resources, such as Google's search engine, the network resources to *** share, such as documents, software, virus libraries, etc., so that we do not need to download other people's resources to their own computers, and can be used directly .　The so-called "cloud", in fact, refers to the back end (server side), usually we can rarely see the end, just because it is usually rare to see, so there is a kind of ethereal feeling, perhaps because of this reason, it is called "cloud" it. We can usually see what it is, of course, their own PC and cell phone these things, also known as the "client". Cloud Computing English translation: cloud; cloud computing; cloud computer; cloud-based. The concept of "cloud computing" was proposed by Google, and as its name suggests, it is a beautiful network application model. In the era of cloud computing, you can abandon the U disk and other mobile devices, just enter the Google Docs page, create a new document, edit the content, and then, directly share the URL of the document to your friends or boss, he can directly open the browser to access the URL. we no longer need to worry about the damage of the PC hard disk and data loss events. Cloud Storage Cloud storage is a new concept that extends and develops on the concept of cloud computing. Cloud computing is the development of Distributed Computing, Parallel Computing and Grid Computing. It is a huge computing process that is automatically split into countless smaller sub-programs through a network, and then handed over to a huge system consisting of multiple servers to be calculated and analyzed. The results are then transmitted back to the user. Through cloud computing technology, network service providers can process tens of millions or even billions of pieces of information within seconds, achieving the same powerful network services as "supercomputers". Cloud Security Following cloud computing and cloud storage, cloud security has also emerged. Cloud security is a concept created by Chinese enterprises, which is unique in the international cloud computing field.　The "Cloud Security (Cloud Security)" program is the latest embodiment of information security in the network era, which integrates emerging technologies and concepts such as parallel processing, grid computing, and judgment of unknown virus behaviors, and obtains Trojan horses and malicious programs in the Internet through abnormal monitoring of software behaviors in the network by a large number of clients in a mesh, and transmits the latest information to the Server side, and transmits it to the Server side. The latest information is transmitted to the Server side for automatic analysis and processing, and then the solutions for viruses and Trojans are distributed to each client.　In the future, antivirus software will not be able to effectively deal with the increasing number of malicious programs. The main threat from the Internet is shifting from computer viruses to malicious programs and Trojans, in which case the feature library discrimination method used is obviously outdated. With the application of cloud security technology, virus identification and checking no longer rely solely on the virus database in the local hard disk, but on the huge network services, real-time collection, analysis and processing. The entire Internet is a huge "antivirus software", the more participants, the safer each participant is, the safer the entire Internet will be.　The concept of cloud security has caused widespread controversy, and many people believe that it is a false proposition. But the facts speak for themselves, the development of cloud security like a gust of wind, Rising, Trend, Kaspersky, MCAFEE, SYMANTEC, Jiangmin Technology, PANDA, Jinshan, 360 Security Guard and so on have launched cloud security solutions. Rising's 2009 new product developed based on cloud security strategy intercepts millions of Trojan horse attacks every day, including more than 7.65 million on January 8th. Trend Micro cloud security has established five major data centers and tens of thousands of online servers around the world. It is reported that cloud security can support an average of 5.5 billion click queries per day, collect and analyze 250 million samples per day, and the first hit rate of the database can reach 99%. With the help of cloud security, Trend Micro is now blocking virus infections up to 10 million times a day.　In short, "cloud antivirus" is the latest trend in antivirus software

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