Reminds me of how I was banned from school computer labs for patching security holes, fixing proxy settings, and removing viruses, and framed & expelled by a network admin trying to cover his ass. Adults can be real douchebags to kids.
Well you got caught in the trying to do good but someone can see it as you are pen testing. Never fix something unless someone tells you to. I've gotten in trouble for fixing printers and for using Excel instead of Word for making documents.
It's a real shame. I get so frustrated when I see adults, even parents, telling kids to stop doing something I would consider to be beneficial, practice, etc.
If I could talk to this girl I'd give her a high-five and encourage her to continue what she's doing. It's a shame adults do everything but sometimes.
Adults don't like it when kids point out their mistakes.
That a 9 year old can be somewhat competent at it says more about reporting than it does the 9 year old.