The unsafe factors of computer network

The computer network provides the sharing of resources. Improve the reliability of the system. Work efficiency is increased through decentralized workloads, and scalability is also achieved. It is these characteristics that increase the vulnerability and complexity of the network, and the sharing and distribution of resources increase the likelihood of the network information being attacked. When the computer network communicates, it usually passes through the communication line, the network interface, the Exchange

devices, routers, etc., these parts are often the target of network attack.

The network insecurity factor mainly has the following several aspects:

Environmental factors such as earthquakes, fire, floods and other natural disasters, as well as too high or too low ambient temperature, inappropriate humidity, not meet the requirements of the electromagnetic environment and power environment, such as the harm to network equipment.

The device failure caused data loss or paralysis of the entire network due to a device failure.

When the line interferes with the old or poor communication line of the common carrier transfer equipment, the line interference will result in the data transmission error.

Electromagnetic leakage network ports, transmission lines and processors may be due to the shielding is not strict or shielding caused by electromagnetic leakage.

Lap-tapping with the increase in information transmission, the classification of data transfer has been increasing, some people with bad intentions, may listen to communication lines, illegal reception of information.

Illegal terminals may be on the existing terminal and a terminal, when the legitimate user disconnected from the Internet, illegal users take the opportunity to pick up and manipulate the computer communication interface, or for some reason information to the illegal terminal.

Injecting illegal information through the telephone line there is a premeditated injection of illegal information, or intercept the transmitted information, delete the original information, or note the illegal information issued again, so that the recipient received an error message.

Hackers attack hackers on network devices, network protocols, operating systems, network applications and other commonly have deep human research, so the attack means very much, according to statistics, hackers can use the attack software. A variety of. Hackers themselves develop or use existing tools to find defects in the network and attack these flaws. Here are the flaws, including software flaws, network protocol flaws, and management flaws.

Early hackers had to be very proficient in computers and networks, because discovering and proving a system vulnerability could require a lot of testing, analysis of large amounts of code, and lengthy programming. Now most hackers use existing hacking tools and do not need superb technology. In addition, the hacker site is visible everywhere on the Internet, hacker tools can be downloaded arbitrarily, therefore, hacker attack is the biggest threat that the network security faces.

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