According to documents released by Snowden through the British "Guardian", this monitoring program called "Xkeyscore" "covers almost all online information" and can "collect Internet data to the greatest extent," including e-mail and website information. , Search and chat history, etc.
According to relevant information, analysts of US intelligence agencies can even conduct "real-time monitoring" of individual Internet activities through the "Xkeyscore" program. In 2012, "Xkeyscore" stored as many as 41 billion monitoring data records within one month.
Although U.S. law requires a corresponding approval letter when monitoring Americans, “Xkeyscore†can also monitor any American technically, and analysts can obtain relevant data even without an approval letter.
The information also shows that the "Xkeyscore" plan has assisted US intelligence agencies to arrest hundreds of terrorist suspects, but the outside world is still very worried about such a large-scale monitoring plan.
Snowden said that when he was employed by the National Security Agency (NSA), he had the opportunity to use the "Xkeyscore" program. He once described that as long as he has a corresponding email address, he can monitor anyone, from civilians to the president of the judge.
The Guardian said that because the monitoring data generated by "Xkeyscore" is too large, the content can only be stored in the system for 3 to 5 days, and the metadata can be stored for 1 month. NSA has therefore established a new database where analysts can "save" their "interested" intelligence and store it for up to 5 years.
Some analysts said that the Guardian published most of the data and technical information related to "Xkeyscore" provided by Snowden that day. Snowden once said that in order to obtain Russian political asylum status, he agreed to "stop damaging US interests in the future."
In a statement sent to the Guardian, the NSA stated that the relevant intelligence objects are limited to "targets outside the United States," which also includes the "Xkeyscore" plan. The purpose of this is to "protect the United States and its combat forces."
Because of the "monitoring gate" incident that caused another storm on the 31st, US intelligence agencies decrypted a small part of the documents previously disclosed by Snowden that day, showing that the US official authorized a large number of telephone data collection.
Snowden flew from Hong Kong to Moscow on June 23 and is still stranded in the Sheremetyevo airport transit area. The US continued to pressure the Russian side to surrender Snowden accused of espionage, but Russia repeatedly refused.
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