Taking the best opportunity, especially if it seems scarce, is one of our greediest instincts. This method describes a way of giving an opportunity to people for their personal gain. The famous Nigerian 419 Scam (www.419eater.com) is a typical example of human avarice. Let's take an example where Bob wants to collect personal information from XYZ University students. We assume that he already has the email addresses of all the students. Afterward, he develops an email message that offers vouchers with drastic discounts on iPods to all XYZ university students, who might then reply with their personal information (name, address, phone, email, date of birth, passport number, and so on).

As the opportunity was carefully calibrated to target students, by letting them believe they'd get the latest iPod for free, many of them might fall for this scam. In the corporate world, this attack method can be extended to maximize commercial gain and achieve business objectives.