TL:DR Found a secret tablet in DD12s room. Blocked the wifi. YABU talk to her. YANBU ignore.
I was changing the sheets on her bed, and tucked under a blanket at the bottom is a cheap (£30 on TEMU) tablet. It's password protected but I can see she has notifications on tiktok which she is not allowed on her phone.
Background is lots of recent dishonesty around screens (hacking my family link to extend her screen time, changing the time on her phone to outwit the downtime set up.) which culminated in me banning screens in her room about 2 months ago.
The sensible part knows I should probably talk to her about it BUT she is genuinely impossible to have a conversation with 90% of the time. She will interrupt every other word, get really heightened and aggressive, threaten not to go to school, threaten running away. She doesn't have any perspective at the moment (although outside the home she is doing well at school, polite and calm).
Part of me thinks now I know about it I can just block the device on our wifi app - she's wasted her money and why start drama. Of course she may figure out I know when she realises it's been blocked, but I guess she can raise it with me if she wants to.
WWYD?