Security: Any testing in production must be done carefully to avoid exposing?

Short answer: sensitive data or violating security protocols. Mitigation: Use canary releases or blue/green deployments to test features in production with minimal impact. Implement feature toggles to disable experimental features in production.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.