What are the advantages and disadvantages of information technology?

With the development of information technology, society will be integrated by computer networks to form a modern information system, and provide a wide range of information services to society through communication networks. On the one hand, we can enjoy information and give full play to its value. On the other hand, information crimes are getting worse. Only in western countries, computer crimes, including computer viruses, increase by 20% every 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 country and individuals and protect valuable information from infringement, people have adopted encryption technology and decryption technology for computer systems and communication systems.