facebook account locked

when i try to log in i got the message -We've received feedback that your account may not be real. Facebook is a community where people share and interact using their real identities.
Facebook does not allow accounts that:
Pretend to be someone else
Use a fake name
Don't represent a real person
In order to regain access to your account, please complete the following security check to verify your identity and help keep Facebook secure.
i have been on facebook for more than 7 y and now i get this stupid message,than i need to -Enter both words below, separated by a space.
Can't read the words below? Try different words or an audio CAPTCHA.
and after enerering words i got the message -No verification methods are currently available. Please come back later., i called to some phone # of facebook support, and after they get access to my pc they said , somebody is hacked my pc and using it outside the usa, but in same day was locked my husbands and daughters facebook accounts, how it happened to all of us, i can;t belive it, that somebody hacked my pc also and get all our paswords and everything, i think it is some facebook scam, and i don;t know hot to get to my account and who to contact in facebook

May we ask; how many computers do you use to access Facebook?

What if any Protection is on each of them and is it all fully up to date?