u/EnvironmentalCheek81

My friend recently got an email from their professor, reporting them to the Director of Undergraduate Studies for academic dishonesty. My friend didn't go to the class's review session, but still answered the ChimeIn, and the professor must've taken attendance for the last day, because they got that email. It's a very large class, and other people definitely got the email as well. What's the worst-case scenario for my friend? Or any tips of what to do?