Question

اگه جواب شما محرمانه است نیازی(الزامی) نیست جواب بدید

Answer 1

You do not have to answer if your answer is confidential.

You are not obliged to respond if your response is confidential.

If your answer is confidential, you need not answer.

Answer 2

Concerns over confidentiality may deter you from responding overtly.

Concerns over confidentiality allow you to respond covertly.