The National Security Agency’s ability to spy on vast quantities of Internet traffic passing through the United States has relied on its extraordinary, decades-long partnership with a single company: the telecom giant AT&T.
While it has been long known that American telecommunications companies worked closely with the spy agency, newly disclosed N.S.A. documents show that the relationship with AT&T has been considered unique and especially productive. One document described it as “highly collaborative,” while another lauded the company’s “extreme willingness to help.”
AT&T’s cooperation has involved a broad range of classified activities, according to the documents, which date from 2003 to 2013. AT&T has given the N.S.A. access, through several methods covered under different legal rules, to billions of emails as they have flowed across its domestic networks. It provided technical assistance in carrying out a secret court order permitting the wiretapping of all Internet communications at the United Nations headquarters, a customer of AT&T.
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Newly Disclosed N.S.A. Files Detail Partnerships With AT&T and Verizon
These National Security Agency documents shed new light on the agency’s relationship through the years with American telecommunications companies. They show how the agency’s partnership with AT&T has been particularly important, enabling it to conduct surveillance, under several different legal rules, of international and foreign-to-foreign Internet communications that passed through network hubs on American soil.
The N.S.A.’s top-secret budget in 2013 for the AT&T partnership was more than twice that of the next-largest such program, according to the documents. The company installed surveillance equipment in at least 17 of its Internet hubs on American soil, far more than its similarly sized competitor, Verizon. And its engineers were the first to try out new surveillance technologies invented by the eavesdropping agency.
One document reminds N.S.A. officials to be polite when visiting AT&T facilities, noting, “This is a partnership, not a contractual relationship.”
The documents, provided by the former agency contractor Edward J. Snowden, were jointly reviewed by The New York Times and ProPublica. The N.S.A., AT&T and Verizon declined to discuss the findings from the files. “We don’t comment on matters of national security,” an AT&T spokesman said.
It is not clear if the programs still operate in the same way today. Since the Snowden revelations set off a global debate over surveillance two years ago, some Silicon Valley technology companies have expressed anger at what they characterize as N.S.A. intrusions and have rolled out new encryption to thwart them. The telecommunications companies have been quieter, though Verizon unsuccessfully challenged a court order for bulk phone records in 2014.
At the same time, the government has been fighting in court to keep the identities of its telecom partners hidden. In a recent case, a group of AT&T customers claimed that the N.S.A.’s tapping of the Internet violated the Fourth Amendment protection against unreasonable searches. This year, a federal judge dismissed key portions of the lawsuit after the Obama administration argued that public discussion of its telecom surveillance efforts would reveal state secrets, damaging national security.
The N.S.A. documents do not identify AT&T or other companies by name. Instead, they refer to corporate partnerships run by the agency’s Special Source Operations division using code names. The division is responsible for more than 80 percent of the information the N.S.A. collects, one document states.
