I'm minding my own business watching Netflix via my Xbox one. Suddenly some random user "cast" into my hubby's account…

I'm minding my own business watching Netflix via my Xbox one. Suddenly some random user "cast" into my hubby's account and took over our TV! Apparently it's common. But it freaked me out because immediately those super creepy adults YouTube kids videos started playing. I grabbed my son and woke my husband up. He fixed it, but it's still super weird. 😱😱😰😰 Wtf????