I think that you might want to take away her electronic devices for good and maybe ground her for a week or so. You should also keep an eye on what she watches/ looks up, and you should have a heart felt talk with her on why what she’s doing is wrong and that she should immediately stop. You should also ask why is she doing this.
Good luck xxx, I hope you get it all figured out soon.
That is worrisome. Sorry your family is dealing with this. A 7 year old is too young to have an ipad. At least one that is totally in her control. Many families have a tech rule that while the kids have ipads, phones, and other various devices, it's MOM and DAD's property and it goes in lock down at X o'clock (6 pm, 7 pm, etc.) . And also, it's a good rule to keep electronics like that out of the bedroom. Older kids, it's shown to interfere with sleep. I went to a seminar recently and that was one of the bullet points. No ipads in the bedroom!
Anyway, get the ipad and take away her access to make the videos. And then ask her why, what prompts her to do this and now she knows that you said no, it's inappropriate, why is she willing to break the rules?
Anyway, I'd inquire if anyone asked for the video to be made, if someone showed her how to do it, or if she's seen other type videos.
I'd also keep in mind that many a 7 year old are not in the position to view their nudity in a sexual way. My son's would drop drawers in front of anyone at that age if they needed to change their clothes. They just didn't quite get why modesty is important. So, this may just be innocent on her part.
So, I'd take over the ipad, she can use it in front of me, have open discussion making her feel safe to share with you and once you know nothing has happened to her that is involved with this videos, I'd set another firm boundary and talk to her about modesty.
good luck