From an article by Jason Evangelho in Forbes:
“I didn’t receive that terrifying notice from Facebook explaining that an incomprehensible amount of my private information and identifying data had been stolen by unknown hackers, but people close to me did. Now, an uncertain number of people with possibly malicious intent know fairly intimate details about them. And that data can be sold to others with malicious intent. They know their most recent phone number, the last 10 real-world locations they’ve checked in to, who they’ve searched for on Facebook, their email addresses, their religious preference, where they work, and in some cases the contents of posts they’ve made and who they’ve talked to on [Facebook] Messenger.
“That’s disturbing, infuriating and creepy. I shudder to think how my loved ones could be targeted with the stolen information, because information isn’t stolen without motivation — something Facebook is still trying to determine alongside the FBI.”
There’s a lot more in the article at: https://www.forbes.com/sites/jasonevangelho/2018/10/13/the-only-secure-facebook-account-is-the-one-you-delete/#6bae7c721568.