The research is devoted to the emergence of threats to information security and competition in cyberspace between the two largest powers - China and the United States. Over the past ten years, China has been actively developing offensive cyber capabilities, turning into a state with a combat- ready and modern army. Its technological level is behind the United States in many areas, but Beijing is rapidly closing the gap. Today, the information confrontation between these countries is of a strategic nature. Both China and the United States are investing large sums of money in the development of cyber technologies. The authors examine the different approaches of China and the United States to the methods of waging information wars and countering various challenges and threats in cyberspace. In conclusion, the authors come to the opinion that China will actively develop information technologies and build up its strategic potential in this area in the near future, which will lead to tougher competition among major powers in cyberspace.