Say for example, I am an immigration consultant. I have a married client - client a and client b. Client a (the wife) is sponsoring client b (husband). They already paid me $10,000. The wife suspects the her husband is unfaithful. She asked me to tell her if I find out about it. I

If he is unfaithful then she will not sponsor him and will divorce him. I agreed to tell her in case I would know so as not to lose them as client.

What is the issue here and what IRCC code did I violate?

Let's say I agreed in good faith, is it right to do so as it is their personal issue?