Is there a blog post or outline that summarizes this talk? I care about privacy, but don't have an hour to watch the whole video. The conference does provide a useful link to a privacy-centric page which catalogs some known facebook abuses: https://privacyinternational.org/types-abuse/facebook but there is no outline of this talk which summarizes the methods that facebook uses to spy on their users and the public.
TL;DR seems to be that lots of apps include the Facebook SDK and when you initialise the SDK it always sends your device ID back to Facebook. Most negative news about Facebook is nonsense but this does seem to be pretty shady on Facebook's part.
Think about it, they already know who you are because you are logged in with your account.
They don’t need more info than that to run targeted ads.