Facebook Has Identified Ongoing Political Influence Campaign
nytimes.com
nytimes.com
The grain of salt is that this is part of a "Charm Offensive" public relations strategy emphasizing security at every opportunity.
The article image, of MZ before Congress, adds gravity to his position that few were seriously commenting on at the time.
https://realmoney.thestreet.com/articles/07/26/2018/facebook...
Edit:
Hint: Discoveries were few in number. Here's an account that was returned from a FB search using the name ("Mindful Being") of an account that was flagged: https://www.facebook.com/mindfulbeing.us/