A family got a shock in a hotel. There was a hidden camera in their room. It was live-streaming them. The father knew about wifi networks. He scanned the hotel's network. He saw a strange device. He became worried. He said: "I could see the live-stream video of myself. I had this horrible feeling that we were being watched."

The camera was in a smoke detector in the ceiling. He complained to the hotel company. It said the hidden camera was not a problem. Later, the company said this was a mistake. It said sorry to the man. It said it does not allow hidden cameras in its hotels. Last year, men were arrested for filming guests in hotels in Korea.