NSA’s Secret Elite Hacking Unit

Snowden documents leaked to Der Spiegel in December 2013 describe a different type of NSA program from the sort that is usually publicized.Rather than revealing software developed by the agency in order to access computers, these revelations describe a secret elite hacking unit, dubbed Tailored Access Operations, or TAO.

Additional Resources:
Washington Post

Source: How the NSA’s Secret Elite Hacking Unit Works | FRONTLINE