In June 2013, the Inter-Services Intelligence, Pakistan's best known intelligence agency, sought to develop a mass surveillance system by directly tapping the main fibre optic cables entering Pakistan that carried most of the nation's network communication data, Privacy International said.
"This system would make available virtually all of the nation's domestic and international communications data for scrutiny, the most significant expansion of the government's capacity to conduct mass surveillance to date," it said in a report titled, "Tipping the Scales: Surveillance and security in Pakistan".
The total intake of data every second sought by Pakistan in the proposal document would rival some of the world's most powerful surveillance programmes, including the UK's 'Tempora' and US' 'Upstream' programmes.
What the ISI wanted to build, according to the request for proposals, was a complete surveillance system that would capture mobile communications data, including Wi-Fi, all broadband internet traffic, and any data transmitted over 3G.
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Since the creation of the Pakistan Internet Exchange - an communications system that keeps most of Pakistan's communications within Pakistan - the government has been able to route the majority of Pakistan's internet traffic through a single core backbone with limited gateways, making it much easier to monitor internet traffic, the report said.
Voice over Internet Protocol (VoIP) communications, including popular services such as Skype and Viber, are also heavily monitored, the report said.
In a secret request for proposals from 2013, the ISI called for complete surveillance system to monitor "[a]ll international IP [internet protocol] traffic....At 3 landing and 2 x Satellite IPLCs [International Private Leased Circuits] sites....".