What is the ruling on benefiting from leaked exam models, and what is the ruling on money earned based on that?

Leaking exam questions to students is a forbidden deception and a betrayal of trust, and it is impermissible for students to view them. If you have viewed leaked questions, you must repent and seek forgiveness. As for future work, if you are proficient in the job and perform it as required, there is no harm in benefiting from what you are given, along with sincere repentance for what has transpired from you.