: Look for a message from Facebook regarding an email or password change. These emails often contain a special link that allows you to reverse the change and secure your account if it wasn't you. Signs You’ve Been Hacked Your password or email address has been changed.
People are receiving friend requests from a "new" account using your name and photo (this is often a rather than a direct hack). How Hackers Get In What to do if your account has been hacked - Facebook fb-hack
If your Facebook account has been compromised, or you're seeing signs like posts you didn't write or login alerts that aren't you, : Look for a message from Facebook regarding
There are new posts, comments, or private messages you didn't create. People are receiving friend requests from a "new"
: If possible, attempt recovery from a phone or computer you have previously used to log into Facebook. Facebook's security algorithms are more likely to trust the request from a recognized device.