My Facebook account was hacked by some person, even though he was blocked. He sent me a link to something and through that he overtook my account and changed every thing. My password, my page, my groups and even my primary email. I recovered that account, changed the password.
He again hacked into it I don’t know how. He was in the block list when he hacked it. Can you please tell me that how can I secure my account that he or anyone else cannot overtake it. Please?