"Meta said it rolled out end-to-end encryption "for all personal chats and calls on Messenger and Facebook" in December. And in 2018, Facebook told Vox that it doesn't use private messages for ad targeting.1 But a few months later, The New York Times, citing "hundreds of pages of Facebook documents," reported that Facebook "gave Netflix and Spotify the ability to read Facebook users' private messages.""<p>1. "Does Facebook use info from your private messages to target you with ads?<p>No. Facebook says it might look at your private messages to determine if they violate the company's policies, but it doesn't use that information for ad targeting. Facebook won't use the contents of your private messages to target you with ads on Facebook Messenger, WhatsApp or Instagram either, according to a spokesperson."<p><a href="https://www.vox.com/2018/4/11/17177842/facebook-advertising-ads-explained-mark-zuckerberg" rel="nofollow">https://www.vox.com/2018/4/11/17177842/facebook-advertising-...</a><p>If the messages are encrypted "end-to-end" or whatever the chosen marketing buzzwords, so that Facebook cannot read them, then how is FB able to "use" messages for anything. One accustomed to normal communications services might think FB is storing and delivering messages and that's all. But in truth, it's "using" them. (For purposes other than complying with any request from a court of comptent jurisdiction.)<p>Exactly what they might be doing is of course highly confidential. You are free to take guesses. FB may answer yes or no. Answers cannot be verified, so their value outside of marketing is dubious.<p>NB. Meta _is_ a third party. It feels as if some people believe they can redefine terms like "end-to-end", "third party", etc. As if they know many readers will happily go along for the ride.