Your question is Securing Ambiguous Service-to-Service Migration. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you had to improve security for service-to-service communication across a complex environment, like multiple clouds or on-prem and cloud, when the requirements were incomplete and you did not directly own every team involved. How did you drive the decision, align stakeholders, and what was the outcome?