Who can give me an introduction to information security in English?

Information security means protecting information and information systems from unauthorized access, use, disclosure, destruction, modification or destruction. [1] The terms information security, computer security and information security are often used interchangeably. These fields are interrelated and have a common goal, that is, to protect the confidentiality, integrity and availability of information; However, there are some subtle differences between them. These differences mainly lie in the methods of studying the theme, the methods used and the areas of concern. Information security concerns the confidentiality, integrity and availability of data, no matter what form the data may take: electronic, printed or other forms.

The government, military, financial institutions, hospitals and private enterprises have accumulated a large amount of confidential information about their employees, customers, products, research and financial situation. Most of this information is now collected, processed and stored on electronic computers and transmitted to other computers through the network. If confidential information about corporate customers or financial or new product series falls into the hands of competitors, this security loophole may lead to business losses, legal proceedings and even corporate bankruptcy. Protecting confidential information is a business requirement, and in many cases it is also a moral and legal requirement. For individuals, information security has an important impact on privacy, and different cultures have different views on privacy.

In recent years, the field of information security has made great progress. As a career choice, there are many ways to enter this field. It provides many specialized fields, including information system audit, business continuity planning and digital forensics science.