What are the advantages and disadvantages of information technology?

With the development of information technology, society will be connected by electronic computer networks, constituting a modern information system, and through the communication network to provide a wide range of information services to society. On the one hand, the realization of information **** enjoy, give full play to the value of information. On the other hand, information crime is becoming increasingly serious. In Western countries alone, computer crime, including computer viruses, is growing at a rate of 20% per year. This fact shows that there is a sharp contradiction between information *** enjoyment and information security. In order to safeguard the legitimate rights and interests of the state and individuals, and to protect valuable information from being violated, people have adopted encryption technology and decryption technology for computer systems and communication systems.