https://phys.org/news/2018-10-facebook-hackers-accessed-account.html

Still, for users already uneasy about the privacy and security of their Facebook accounts after a year of tumult , the details that hackers did gain access to—gender, relationship status, hometown and other info—might be even more unsettling.

Facebook has been quick to let users check exactly what was accessed. But beyond learning what information the attackers accessed, there's relatively little that users can do—beyond, that is, watching out for suspicious emails or texts. Facebook says the problem has been fixed.