What is the ruling on studying and teaching accounting that deals with interest, and on working in usurious banks?

Studying accounting that deals with interest is permissible if the intention behind it is to expose the methods of criminals and clarify them for those who need such information, while prioritizing the preservation of time and spending it on what is beneficial. However, if the intention behind studying it is to work with it or teach it to those who work with it, then it is forbidden, based on the Almighty's saying: (And cooperate in righteousness and piety, but do not cooperate in sin and aggression).