Namechanged.
DD is 11 and has recently started at secondary school. She was added to the year 7 WhatsApp group a few weeks back which is mostly the girls talking about homework/uniform/school stuff.
Tonight another parent called me and told me to check the chat. One of the girls had shared the attached picture 
I've removed DD from the chat and deleted the photo from her phone (autosave to camera roll) but I'm wondering if I should notify the school. I'm no prude but I'm truly horrified that an 11 year old would share it or even understand it.
I'm a new secondary parent and do recognise that the school are no as interested in out of school issue than primary but this feels like it crosses a safeguarding line?