##### Scenario You are part of the payments-risk team. Two new transactions arrive with attributes such as amount, issuing country, device, historical fraud rate and card age. You must decide in real-time whether to accept or decline each and outline quick risk-mitigation strategies. ##### Question Walk me through your decision process for each transaction and list at least three simple risk strategies you would deploy immediately (e.g., rules, throttling, manual review). Explain the trade-offs between false-positives and charge-backs. ##### Hints Discuss risk factors, cost/benefit, threshold setting, velocity checks, user history and A/B testing of rules.