Is the current salary permissible, knowing that part of the studies involved cheating on exams?

The feeling of remorse for cheating indicates the sincerity of repentance, for remorse is repentance. Cheating on an exam is a grave sin, but whoever repents, Allah will accept their repentance. The fear of cheating affecting the permissibility of the work acquired through it does not impact the work if it is performed as required. Repentance for past cheating is sufficient if the final certificate is legitimate, and the salary one receives from it is permissible for them.