Network security

Network security means that the hardware and software of the network system and the data in the system are protected, which will not be destroyed, changed or leaked due to accidents or malicious reasons. The system can run continuously, reliably and normally, and the network service will not be interrupted.

computer virus

Computer virus refers to a set of computer instructions or program codes inserted into a computer program by a compiler, which destroys computer functions or data, affects the use of the computer and can replicate itself.

wooden horse

Trojan horse is a malicious remote control software. Trojans are generally divided into client and server. The client is the console of various commands used locally, and the server is run by others. Only the computer that has run the server can fully control it. Trojans don't infect files like viruses.