The National Security Agency has reportedly used automated systems to infect user computers with malware since 2010, according to a Wednesday report. And at times the agency pretended to be Facebook to install its malware.
The NSA has been using a program codenamed TURBINE to contaminate computers and networks with malware "implants" capable of spying on users, according to the Intercept, which cited documents provided by whistleblower Edward Snowden.
Between 85,000 and 100,000 of these implants have been deployed worldwide thus far, the report said.
To infect computers with malware, the NSA has relied on various tactics, including posing as Facebook.
The federal agency performed what is known as a "man-on-the-side" attack in which it tricked users computers into thinking that they were accessing real Facebook servers. Once the user had been fooled, the NSA hacked into the user's computer and extracted data from their hard drive.
Facebook said it had no knowledge of the NSA"s TURBINE program, according to the National Journal. However, the social network said it is no longer possible for the NSA or hackers to attack users that way, but Facebook warned that other websites and social networks may still be vulnerable to those types of attacks.
Other ways the NSA infects malware onto computers include sending out spam emails.
The NSA is capable of installing different kinds of malware, each capable of performing different tasks. According to the report, certain malware can:
Use a computer's microphone to record audio
Use a computer's webcam to take photos
Record a computer's Internet browsing history
Record login details and passwords use for Web services
Log users' keystrokes
Extract data from flash drives when they are plugged into infected computers
Block users from accessing certain websites
Corrupt files that computers attempt to download
When the NSA first began infecting computers with malware in 2004, it would do so manually, according to the report. At that time, only between 100 and 150 implants had been deployed.
[Updated 1:25 p.m. PDT March 13: The NSA has said that the report by the Intercept is inaccurate.
"NSA does not use its technical capabilities to impersonate U.S. company websites," the agency said in a statement. "Nor does NSA target any user of global Internet services without appropriate legal authority."]