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Recently, experts from Durham University, the University of Surrey and Royal Holloway College, University of London, conducted an experiment. Using artificial intelligence technology, they successfully deduced typing content by recognizing keyboard sounds.
To conduct the experiment, the researchers pressed 36 keys on an Apple MacBook Pro laptop keyboard, each 25 times, and recorded the sound. They then fed these recordings into an AI program that could learn and recognize the patterns of each key's vocalization.
Next, they placed an iPhone 17 centimeters away from the same laptop to record someone's voice as they typed. By analyzing these sounds, they managed to deduce the typing with a staggering 95% accuracy. However, when they recorded using Zoom meeting software, the accuracy dropped to 93%.
Ihsan Torreni of the University of Surrey's Centre for Cyber Security said: "Each key emits a unique sound, and this sound can be recorded to infer which key is being pressed. This means that there are already techniques to exploit this "side-channel" attack.
"Side-channel" attacks are methods that attempt to steal signals from communications devices and may use information such as electromagnetic waves, acoustics, and power consumption. This attack can be used to steal sensitive information such as passwords, account numbers, and other confidential data.
——The global cybersecurity situation is becoming increasingly severe
From 2022 to 2023, the global cybersecurity situation continued to deteriorate, and various major cybersecurity incidents occurred frequently. Threats such as ransomware, data leaks, and hacking are emerging and becoming more destructive. At the same time, the cost of attacks by cyber attackers is decreasing, and their methods are becoming more advanced. This has made critical information infrastructure face increasingly serious cybersecurity threats, posing a serious threat to national security.
——The scale of global network security is increasing year by year
According to data from IDC and Gartner, as of March 31, 2023, the global cybersecurity market reached $195.51 billion in 2022, with a year-on-year growth rate of 15.8%. According to data disclosed by Gartner, the global cybersecurity market size will be $169.16 billion in 2022, with a year-on-year growth rate of 7.2%. The China Academy of Information and Communications Technology has not disclosed specific data for 2022.
——Global cybersecurity industry market size forecast
According to IDC's forecast, the compound annual growth rate of the global cybersecurity industry market size in the future is 10.4%, and it is expected that by 2028, the global cybersecurity industry market size will reach $354 billion.
Yin Hao, academician of the Chinese Academy of Sciences and researcher of the Academy of Military Sciences, believes that the development breakthrough of artificial intelligence technology and its application in the field of information technology will promote the innovation and intelligent upgrading of network security defense technology. The traditional defense method relying on product stacking has become difficult to deal with complex cyber threats, so the formation of a closed management loop through network security services has become a development trend, and the demand for network security services is increasing. At the same time, the ecological environment of the cybersecurity industry is also improving day by day.
As digitalization accelerates and cyber threats continue to increase, the need for cybersecurity will continue to grow. The application of innovative technologies, government support, and the demand for emerging fields will drive the development of the cybersecurity industry. However, the cybersecurity industry also faces some challenges, such as a rapidly changing threat environment and talent shortage. Therefore, cybersecurity enterprises need to continuously improve their technical strength, strengthen cooperation and innovation, and respond to market competition and challenges.
Foresight Economist APP Information Group
For more research and analysis of this industry, please refer to the "China Cybersecurity Industry Development Prospect Forecast and Investment Strategic Planning Analysis Report" by the Prospective Industry Research Institute
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