How to secure data in production environment [closed]
Solution 1:
Apply the principle of "separation of concerns": let developers develop (on the D and T environments of a DTAP roadmap) and support employees manage the A and P environments. In general, the support employee adheres to the same privacy policy rules and agreements as a "normal" application user. Setup representative, but dummy data on the D, T and A environments. This way, your developers can't access real-life data (which is as it should be).
For a more elaborate explanation, see any advanced test management methodology, such as TMAP.