Plaid adds rule suggestions to the Protect dashboard. How do you measure success?
Measure successMediumProblem. The Protect team is building a dashboard feature that suggests new rules to each customer, based on fraud patterns Plaid sees across the network ("block linking when the same device linked 5+ accounts this week"). Customers can accept or ignore each suggestion. The PM asks you how we'll know if the feature is working.
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.