Comment by freedomben

In those cases, I would still talk about it, but let them know that you can't give certain specifics because of an NDA, but that you will talk about it at a high level.

For example, if the company was doing something you felt was evil That you can't specifically mention, then just say That you disagreed with an important strategic decision. Explain what you did to handle it in generic terms, such as talking with your manager, writing up a memo, quitting the company, etc