I have talked about this problem before, but I will but it into a more realistic context/story:
You wake up in the morning and you grab yourself a fresh cup of coffee, rub your eyes and sit down in front of your computer. DING! goes your email and you find a letter from some company that you’ve never heard of but, they have heard of you and want to purchase your photos. You skim through making sure that it is not one of those ever-so-obvious scams where they want you to send all your banking information to some small African country. You soon realize that this is a legit offer and they are asking some serious questions.