intenet threats and scandal

My experience about internet threat and scandal are my official account of my facebook has been hack so that i dont know what happen because afte i play i did not know that i leave my account.
and the next day i log in my account i was suprised because there was  different posts then i asked the computer shop owner because i did not find that there are different posts and there are different viruses

That next day i came back and i call my friend i told him pls help me to prevent the viruses.Some day nothing chaged in my account there are still posts of scandal i couldn't do anything because i didn't
know to how to prevent the posts and viruses. So i decide to create a new facebook account and i learned how to take care my account.So i advise to all of you to maintain your facebook account