[muzuq]

Keep in mind, if it's an IP issue they should be replying upfront with "I'm not sure I can discuss that, IP blah blah" not dodging the question.

If they are an honest candidate, at least.

[throwaway693383]

If they are a dishonest candidate they should be deflecting in this way too.

It shuts down the interviewer's chance to strong arm them, without the interviewer coming off as aggressive.

It also signals to the interviewer that the candidate is trustworthy, and isn't going to go off interviewing for other companies sharing their IP.