If you have been unlucky enough to suffer from a hacked FB account, don't worry some solutions to rectify the problems.
Check below some changes to minimize the damage you should:
- remove suspicious applications on your Facebook
- Reset your Facebook password
- change your Facebook password
- Alert your Facebook friends and family as soon possible
- Report this issue of Facebook support page.
If you really don't know what is possible steps to recover hacked Facebook account then check this blog.
Learn more https://blog.storymirror.com/read/ne1srblp/how-to-recover-a-hacked-facebook-account