According to a post-it style note from the presentation, the exploitation relied on the fact that (at the time at least) data was transmitted unencrypted inside Google's private cloud, with "Google Front End Servers" stripping and respectively adding back SSL from/to external connections. According to the Washington Post: "Two engineers with close ties to Google exploded in profanity when they saw the drawing." After the information about MUSCULAR was published by the press, Google announced that it was working on deploying encrypted communication between its datacenters.[2]
https://en.wikipedia.org/wiki/MUSCULAR_(surveillance_program)
*Jarrett’s involvement in Iran is cause for concern for three additional reasons–two minor and one major. One minor reason is that she was born there. That should not automatically disqualify anyone, of course, any more than being born in the Soviet Union would have disqualified an anti-Soviet dissident. But Jarrett was born in 1956 to American expatriates in the aftermath of the CIA-assisted coup that deposed Mohammad Mossadegh.