RAND Corporation put together an amazing paper on Russian propaganda in the 21st Century called “The Firehose of Falsehood.” I’ll add more here as I read through it more thoroughly.
2016 Election Interference

Article Series on How Cambridge Analytica Came to Be
The NATO association of Canada published a four-part series of articles briefly explaining how the study of OCEAN lead to a Cambridge researcher empowering Cambridge Analytica to specifically target voters in the Brexit and American 2016 presidential elections. I spent some time in my undergraduate program studying Psychographics, an area of research using OCEAN, a personality assessment tool measuring Openness, Conscientiousness, Extroversion, Agreeableness and Neuroticism, and back then the research showed promise. Anyway, these are a short read:
(Image taken from Article 3)