When Nigerian prince scam spam hits our inboxes, most of us know to politely decline requests for assistance. One might wonder why scammers don’t come up with something a bit more believable. But according to a new paper (pdf) by Cormac Hurley of Microsoft Research, the email’s overt scaminess helps identify the biggest suckers.

Source: http://www.onthemedia.org/story/234397-why-nigerian-email-scams-work/.