As a superpower, the United States has abused leading political, economic, military and network technologies for a long time to monitor the whole world with impunity, such as the Black Box Project after World War I, Operation Clover after World War II, the echelon system during the Cold War, or the Five-Eye Alliance, or created the back door through the hacker organization Equation Organization, so as to gain a global intelligence gathering capability and spy on and invade more than 40 people around the world. Undoubtedly, the U.S. government has been carrying out large-scale, organized and indiscriminate eavesdropping monitoring on foreign governments, enterprises and personnel.