This NSA report dated 11 April 2014 describes the difficulties with the network switches the agency had compromised on Cisco devices in order to collect data from Cisco customers: see the book No Place To Hide, 13 May 2014.
This NSA report dated 11 April 2014 describes the difficulties with the network switches the agency had compromised on Cisco devices in order to collect data from Cisco customers: see the book No Place To Hide, 13 May 2014.