One my colleagues had this recently. He was interviewing an “engineer” and there was big awkward pauses after each question while they waited for the candidate

One my colleagues had this recently. He was interviewing an “engineer” and there was big awkward pauses after each question while they waited for the candidate to respond. They realised the candidate was being fed the answers in an ear piece or something. They just said it was so weird like how did this person think they would get away with it.