Brown University professor Roberto Serrano told Business Insider that the "cost of cheating has basically gone down to zero." Roberto Serrano Brown University professor Roberto Serrano saw scores drop between a take-home midterm and an in-person final. He suspects the students cheated with AI. "It's certainly a wake-up call to the professors," he told Business Insider. Serrano shared the exam scores. Some dropped from perfect scores on the midterm to below 20% on the final. Roberto Serrano's c