That image is a shows an NSA diagram of Google's network, with the links on the "public internet" side labeled "SSL" and on the "Google cloud" side labeled "cle

That image is a shows an NSA diagram of Google's network, with the links on the "public internet" side labeled "SSL" and on the "Google cloud" side labeled "clear text". You don't have to steal keys to exploit that, you just need physical attacks against the fiber links between Google's datacenters. Google had been working on encrypting that traffic, which was then massively accelerated when they learned it was being actively exploited: https://arstechnica.com/information-technology/2013/11/googlers-say-f-you-to-nsa-company-encrypts-internal-network/ https://arstechnica.com/information-technology/2013/11/googl... (Disclosure: I work at Google)