Are you kidding me? They used WhatsApp for intelligence communication?

"We will use Facebook Messenger, which is clearly, the better of the two"

Well it had a lock icon. You can't just make those up!

I'm shocked! …that so far they were using whatsapp.

Any intelligence agency who legitimately thought that app was ever secure after simple OSINT techniques reveal otherwise needs to be overhauled from the top down.