"The document suggests CSE has access to a series of sophisticated malware tools developed by the NSA as part of a program known as QUANTUM. As The Intercept has previously reported, the QUANTUM malware can be used for a range of purposes – such as to infect a computer and copy data stored on its hard drive, to block targets from accessing certain websites, or to disrupt their file downloads. Some of the QUANTUM techniques rely on redirecting a targeted person’s internet browser to a malicious version of a popular website, such as Facebook, that then covertly infects their computer with the malware."