hacker.org

I found this group on facebook and I wonder if it is an extension of this community
If it is I would like to join so please anyone from inside invite me in this is my profile

I'm not sure if this is something "official". If it was, then it would probably have been mentioned on this here website, I guess?

based on the content it's almost certainly not official -- and imho joining a hacking group on facebook is a singularly bad idea.