A while back I read a book about a group of kids that were sent to a tech addiction camp for rich kids. The book takes a turn though, the counselors are actually con-men who set up the camp to abduct rich kids and demand a ransom. The kids are taken to an island and eventually outsmart their captors and kill them. The rest of the book is about the kids surviving on the island and using the skills they got online to survive.
The book is called Unplugged by P.D. Quaver. It’s a little known book so thats why you don’t find it right away searching unplugged