While all this was going on with the Russians the problem was way more complicated than just an aggressive counter intelligence push the Kremlin. Iran, China and others were rolling up CIA stations. I have a feeling there is much more to this article - seam like there are moles. As well seam like low tech methods may be better at times.

However just another reason why an SoS or anyone else for that matter shouldn't be using improper channels of communication.

https://www.theregister.co.uk/2018/11/02/iran_cracked_cia_google/

https://finance.yahoo.com/news/cias-communications-suffered-catastrophic-compromise-started-iran-090018710.html

https://www.commdiginews.com/politics-2/did-china-hacking-clinton-emails-lead-death-of-cia-spies-105525/

https://www.washingtonpost.com/opinions/global-opinions/the-saga-of-the-chinese-mole-reads-like-a-spy-thriller/2019/05/08/3952392c-71da-11e9-9f06-5fc2ee80027a_story.html

Interesting news share brother Robert