The WikiLeaks website announced on the 7th a US CIA network monitoring project called "Vault7". The number of documents leaked was as high as 8,761. The content is shocking. A number of foreign media have called it the largest surveillance scandal in the history of the United States. According to the British "Israeli" report, the first batch of more than 8,000 documents published were part of WikiLeaks's "Vault7" series of leaked documents, and all of the file pages reported much more than Bisnodon documents. The contents of the document prove that the agency is monitoring the global electronic equipment through a series of special software. WikiLeaks said that the monitored devices include iOS, MacOS, Android, Windows, Linux, Samsung Smart TVs, and even smart car systems and routers. With special software, the CIA can activate the microphones or cameras in these devices at any time and any place to monitor. This kind of operation can be activated even in the "off state". The report from the BBC more directly exposed the name of the software that the CIA carried out these activities, the Weeping Angel (Crybaby Angel), and described it as the cooperation between the CIA and the MI6.