User blog comment:DiegoAnime3000/Just wanted to point this out./@comment-96.254.157.84-20140801063026

Because Cinder infiltrated as a student doesn't mean anything if you watched the Afterbuzz show. As Monty already said (albiet jokingly) Cinder is older than she appears and only looks youn because, apparently as Monty says, she's Asian.

I don't think that she is related to Ruby or Yang, or that she was on Ozpin's team (since Monty said Ozpin is very old), but you can't rule out that she was a student nor that she knew Summer Rose.