After all, the real virus will destroy our system, so how to defend against the virus?

Viruses, Trojans, Rogue Software-Internet Security Trilogy Nowadays, computers have been completely integrated into people's lives like household appliances. However, due to the limitation of computer users' theoretical knowledge and practical operation level and the imperfection of computer information security legal system, viruses, Trojans and hackers are rampant in the network. Therefore, network security has also become the focus of attention. First, the eternal security topic-virus has shown a diversified development trend so far. At present, the most rampant viruses on the Internet are worms, IM viruses and phishing viruses. Worm virus mainly uses system vulnerabilities to spread and destroy automatically, and its harm is self-evident. Because the loopholes in the system are inevitable, various worms have sprung up like mushrooms after rain, which is hard to prevent. Due to the extensive application of IM software by computer users, IM virus broke out in an all-round way. First, QQ virus ran rampant, and then MSN's "sexy roast chicken" virus really made MSN users suffer a lot. Not to be outdone, the phishing virus first appeared on the fake websites of major banks, and then with the help of the wave of the Indian Ocean tsunami, the tsunami virus was really beautiful. In addition to these devastating viruses, all kinds of justice viruses also appeared on the Internet for the first time. The so-called justice virus refers to the kind of virus that has the characteristics of virus, but does not destroy the system, but helps to reduce system loopholes and makes people laugh and cry. For example, "anti-Santy" virus, if users are infected with this virus, it will not only destroy the system, but also automatically check the missing patches of the system and automatically help the system to put on the missing patches. "Noped" virus is more interesting. It will automatically search for pictures with child pornography. Once it discovers child pornography, it will automatically send a report email to government agencies. After all, the real virus will destroy our system, so how to defend against the virus? 1. Using anti-virus software Due to the rampant virus, all safety manufacturers have launched their own anti-virus software. At present, the domestic market mainly includes domestic Rising, Kingsoft Internet Security and KV antivirus software, and foreign Norton, Kaspersky and McAfee (commonly known as selling coffee). They have their own characteristics, and it is impossible to distinguish between good and bad. Foreign anti-virus software has powerful kernel, stronger anti-virus function and simple interface. Although domestic antivirus software can't compete with foreign antivirus software in kernel, it is far superior to foreign antivirus software in resource occupation when dealing with domestic viruses. For example, Kaspersky is an internationally renowned old anti-virus software with powerful anti-virus function, but it takes up relatively more system resources, so it is not suitable for friends with low hardware configuration to share Kaspersky. If Kingsoft Internet Security takes up little resources, the effect will be better. 2. The reason why the bug-detecting virus can easily enter the user's computer is largely because the user's computer has no security defense measures and the updated patch is not updated in time. Because the author of the virus will not appear until the system patch is released. At this time, patching the system in time becomes the key. Because patching the system before the virus wreaks havoc can fundamentally eliminate the security risks brought by worms. (1) Online Update Microsoft provides a website for updating and downloading patches. Every time a user visits the website, the system itself will send its information to the website. According to the received system information, the website will judge which patches have not been played in your system, and list the patches that users have not played in the form of a list for users to install. This method really provides great convenience for users, so how do we visit this website? Enter the website address in IE browser: and press Enter. Or click the "Start" menu, and you can see a Windows Update icon at the top of the menu. Click this icon, and the system will automatically visit the Windows Update website. After visiting the Windows Update website, users can choose quick installation and custom installation. After confirming the selection, the Windows Update website will automatically detect the patches that are not installed in the system. In this way, users can check the patch you want to install according to their own situation, and then click the install button to fix the vulnerability of their system online. (2) The advantage of automatic update is that users don't need to care about which patches have not been played. The system will automatically download the latest patch from the Windows Update website. After the download is completed, the user will be prompted whether to install the patch or install the patch automatically. How to configure? Look at the following specific steps: right-click my computer icon, select Properties, and open the system properties dialog box, which has the option of automatic update. There are three options for automatic update: automatic, download update and download notification. Users can choose according to their actual situation. 3. In the face of huge resources like iNet, how can it not be exciting to prevent downloading viruses? But no one can guarantee that everything that can be downloaded is clean, especially some online games, tools of small websites and so-called "free" network resources, which often hide unexpected things. How can I avoid downloading viruses? ① Develop good downloading habits. Generally don't go to some small websites to download things, and don't directly open any downloaded files and programs. Instead, use antivirus software to check for viruses before opening them. ② Download with download tools such as FlashGet, and bind the download tools with antivirus software to achieve the purpose of automatic antivirus after downloading. Through these settings, we can protect the system from viruses to the greatest extent.