You are the Controller for Atabanana Corporation. Mel Malvado is another employee with your organization. You have met Mel only once before briefly. Mel comes to you and shows you a payment request. Mel says that he had trouble logging into the system to get the payment processed. He doesn't know why his user ID did not work, but he needs to get the vendor paid today. He knows you have access to the payment system and asks you to log in for him. Mel then compliments you on your professionalism, expertise, good nature, and good looks. You found this a little strange since Mel did not really know you.

What fraud technique might Mel be using here? Should you log in for Mel?

In a few sentences, please explain your answer.