Computer Virus is a set of computer instructions or programs that the programmer inserts into a computer program to destroy computer functions or data. It can affect the use of the computer and can replicate itself. code.
Computer viruses are classified according to the transmission medium and can be divided into stand-alone viruses and network viruses.
Methods to prevent viruses:
Computer viruses are watching the computer all the time and are always ready to attack, but computer viruses are not uncontrollable. You can use the following There are several aspects to reduce the damage caused by computer viruses to the computer:
(1) Install the latest anti-virus software, upgrade the virus database of the anti-virus software every day, regularly scan and kill viruses on the computer, and turn on the anti-virus software when surfing the Internet All monitoring. Develop good Internet habits, such as opening unknown emails and attachments with caution, avoiding websites that may contain viruses, and using more complex passwords as much as possible. Guessing simple passwords is a new way for many network viruses to attack the system.
(2) Do not execute software without anti-virus treatment after downloading from the Internet; do not browse or log in to unfamiliar websites casually, strengthen self-protection. There are many illegal websites now, and malicious codes are sneaked into them. Once they are When users open it, Trojan horses or other viruses will be implanted.
(3) Cultivate a conscious awareness of information security. When using mobile storage devices, try not to share these devices, because mobile storage is also the main way for computers to spread and the main target of computer virus attacks. For places with relatively high information security requirements, the USB interface on the computer should be closed. At the same time, if possible, a dedicated machine should be used.
(4) Use the Windows Update function to patch the entire system. At the same time, upgrade application software to the latest version, such as player software, communication tools, etc., to prevent viruses from invading the system through web Trojans or through Other application software vulnerabilities are used to spread viruses.
Isolate the computer that has been infected by the virus as soon as possible. During the use of the computer, if you find that there is a virus on the computer or the computer is abnormal, you should interrupt the network in time; when you find that the computer network has been interrupted or the network is abnormal. , immediately interrupt the network to prevent the virus from spreading in the network.
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