フリー問題

問題文

A payment provider adds a third-party fraud-scoring feature. Each control on each side was tested and passed. Within a week legitimate customers in one region are being blocked. Which conclusion is best supported?

選択肢

1. Only the decision right run after the two sides were joined can explain this, because passing each part of the implementation separately proves nothing about the whole, and neither does the trust perimeter.
2. Only the combined testing run after the two sides were joined can explain this, because passing each part of the implementation separately proves nothing about the whole, and neither does the measurement scope.
3. Only the customer alert run after the two sides were joined can explain this, because passing each part of the implementation separately proves nothing about the whole, and neither does the proven resilience.
4. Only the plain language run after the two sides were joined can explain this, because passing each part of the implementation separately proves nothing about the whole, and neither does the buyer loyalty.