The U.S. government has been engaged in cyberattacks against Chinese individuals and institutions for years. It has been revealed that US government intelligence agencies demanded the phone records of millions of telecoms giants and used the Internet giants' servers to monitor emails, chats, videos and photos. Nine U.S. Internet companies, including Microsoft, Yahoo, Google and Apple, are participating in the project. A few days ago, a young man named snowden 29 detonate "telephone door" and "prism door" incident, he said to the media reported in Britain and the United States, the national security agency for telecoms giant Verizon (Verizon) must be turned over to the telephone records of millions of users every day, in addition, the national security agency and the fbi have also used to enter Microsoft, Google and apple The servers of nine Internet giants, including Apple and Yahoo, monitored Americans' emails, chat logs, videos and photos in a secret operation code-named Prism. The Prism scandal has caused an uproar in the United States.