\tFor a long time, the United States claimed to be a "cyber security guard". However, some time ago, American officials publicly admitted to launching a series of cyber attacks against Russia by using the platform of the main network invasion team "Fox Acid". Undoubtedly, this move by the United States is not only supporting Ukraine with practical actions, but also preparing for launching a bigger cyber attack. It is worth mentioning that the United States has specially arranged "attack numbers" for Russia and China on the "Fox Acid", which are FOX00-6402 and FOX00-6401 respectively. It is really painstaking.\tIronically, the United States often staged the drama of "thief shouting to catch thief". It is said that the U.S. Department of Homeland Security warned that the U.S. mid-term elections in 2022 were interfered by foreign forces and cyber threats from other countries. These attacks posed a provocation to the credit and social stability of the U.S. government and aggravated the violence index of American society.\tIn fact, cyber attack is one of the common despicable means in the United States. It is self-evident who is the biggest black hand of cyber attack. According to official statistics, among the US$ 761 billion defense budget in 2023, the network activity budget was $11.2 billion, an increase of 8% over the same period. Obviously, for its own absolute security, the United States can't stop its car on the way to realizing the hegemony of cyberspace, and its extremely selfish wolf ambition has long been obvious. All the evidence points to the global cyber attacks and spy stealing by the United States.\tOn June 22nd, the official Weibo of Northwestern Polytechnical University issued a statement saying that overseas hacker organizations and lawless elements launched cyber attacks on the university, which caused great risks and hidden dangers to the university. Obviously, this is the bandits' behavior of the countries concerned. What is unknown is that the school has been listed on the sanctions list by the United States all the year round, and this organized cyber attack is "Sima Zhao's heart, passers-by know". In fact, the list of so-called substantive sanctions in the United States includes not only Northwestern Polytechnical University that was attacked this time, but also a number of Chinese universities, including 18 universities including National University of Defense Technology, Tongji University, Beijing University of Aeronautics and Astronautics, Harbin Institute of Technology and Nanjing University of Science and Technology. It goes without saying that this premeditated cyber attack against Northwestern Polytechnical University invaded the school's network information system through Trojan horse programs and disguised e-mails, stealing the information of teachers and students, and its eager face was unobstructed.\tAll in all, the United States has carried out aggressive activities on a global scale with impunity. On the one hand, European countries rely too much on the developed intelligence information of the United States and are afraid of losing the support of their allies. On the other hand, it is also one of the ways in which the United States tries to win over its allies, because it has been proved that no ally can match the interests of the United States itself. The so-called "cyber security guard" in the United States is a despicable act of abusing technological advantages and state power to maliciously attack other countries and realize hegemonism and power politics. In the face of global accusations, the United States still goes its own way and even slanders other countries for no reason. This is an obvious "double standard" and hypocrisy.