A new top-secret document leaked by Edward Snowden revealed how the NSA and its allies planned to target Android platforms under the project IRRITANT HORN. The surveillance operation was organized by members of the Network Tradecraft Advancement Team, composed by experts and cyber spies from the Five Eyes intelligence alliance. The idea behind the Irritant Horn project is very simple, cyber spies wanted to serve spyware on mobile devices running man-in-the-middle attacks to inject malicious data. The malware implanted with this technique allows the intelligence agencies to control users devices and exfiltrate data from it.”]
Source: https://securityaffairs.co/wordpress/37029/intelligence/project-irritant-horn.html