Global information security has gone through three stages: communication security, information security and information security. At the beginning of the 20th century, this stage mainly emphasized the confidentiality of information, and information security was mainly communication security. After 1960s, the rapid development of semiconductor and integrated circuit technology promoted the development of computer software and hardware, mainly aiming at confidentiality, integrity and usability. Since 1980s, other principles and objectives have been derived from information security, such as controllability, undeniability and authenticity. Information security has changed to consider its system construction from the overall perspective.
The proportion of global information security in total IT expenditure fluctuates.
According to the data of key IT indicators released by Gartner every year, from 20 16 to 2020, the proportion of global information security and risk management technology and services in total IT expenditure fluctuated, and in 2020, the proportion decreased by 0. 1% to 4.9% compared with the previous year. Gartner pointed out that this does not mean that the security expenditure of enterprises has decreased, but the growth of security expenditure may be lower than that of overall IT expenditure.
Note: The proportion data in the chart is the cross-industry median.
Security investment in software and Internet service industries accounts for the highest proportion of total IT expenditure.
The data of key indicators also show that the proportion of safety investment in different industries varies greatly. Among them, the proportion of security investment in software and Internet services is significantly higher than that in other industries, accounting for 8.7% in 2020. The remaining industries that account for more than 6% are public utilities and insurance industries in turn, and the transportation industry has the lowest proportion of safety investment.
IT is estimated that the global IT security expenditure will reach $654.38+089.2 billion in 2024.
In recent years, the sustained growth of cyber threats has promoted the rapid development of the global information security market. The product structure of information security is increasingly rich, the number of manufacturers is increasing, and the market scale and the proportion of information security investment are increasing.
From 20 17 to 2020, the global information security-related expenditure shows an increasing trend. According to the data of Gartner and IDC, in 2020, the global information security-related expenditure will reach $654.38+0338 billion and $654.38+032 billion respectively.
According to IDC's forecast, in 20021year, the global investment in IT security-related hardware, software and services (according to the caliber of network security) will reach $654.38+043.5 billion. With the increasing attention of global governments and enterprises to network security, it is expected to reach $654.38+089.2 billion in 2024.
—— The above data refer to the Analysis Report on Market Foresight and Investment Strategic Planning of China Information Security Industry by Forward-looking Industry Research Institute.