Respectfully, the story you referenced is about how MSG compiled "Facial Recognition Activists.docx," collecting its critics' tweets and comments into an internally accessible file.

https://www.404media.co/madison-square-garden-made-dossier-o...

This story is about how the hackers actually got into Madison Square Garden.

https://www.404media.co/how-hackers-broke-into-madison-squar...

I think there is an argument that there are two different stories here.