I did post this in Aimoo for you,but just incase will tell you here.
I was amazed to see a woman in my group who was not a member,seems she tapped on a profile post and it took her to my group which is private,Ive had Admin looking into this,but untill they know who's profile she clicked on they cannot find the glitch,so not very secure then is it?
I allowed her to join,but she has her own group and had the cheek to post her groups addie on my group and then would not post my addie in hers,so I deleted it,the nerve of some people amazes me it really does,never would I do that.