Social Engineering & FraudMANIPULATIVE

Advance-Fee Fraud

What it is

A scam that promises a large future payout (an inheritance, lottery win, business commission, or trapped fortune) but requires the victim to pay a series of upfront fees that never unlock the promised money.

How it works

Advance-fee fraud is one of the oldest confidence tricks, documented as the "Spanish Prisoner" letter in the 19th century and now known globally as the Nigerian or "419" scam, after the section of Nigeria's criminal code. It runs on the prospect of a windfall disproportionate to the small cost of obtaining it, which biases judgment toward the reward and away from the risk. Once the victim pays the first fee, the sunk cost and commitment principle take over: each new obstacle (a tax, a bribe, a bank charge, a courier fee) feels like the last one standing between them and the fortune, so quitting means writing off everything already paid. The story is engineered to include just enough plausible detail (real bank names, official-looking documents, a named official) to answer early doubts. Stajano and Wilson identify the "need and greed" and "dishonesty" hooks that make targets reluctant to walk away or report, since some believe they are party to a shady but lucrative deal.

Real-world examples

•The classic email from a "barrister" or "prince" who needs help moving millions out of the country and offers a large cut in exchange for a modest processing fee.
•A letter or call announcing a foreign-lottery win the victim never entered, requiring payment of "taxes" or "customs" before the prize can be released.
•The Spanish Prisoner con of the 1800s promised a share of a wealthy captive's hidden fortune in return for funds to secure his release, the same structure in period dress.
•A fake overseas job or business deal that asks for upfront "visa," "permit," or "escrow" fees, then invents fresh charges until the victim stops paying.

Ethical guidelines

●Collecting fees against a payout you know will never come is theft; there is no legitimate deployment.
●Legitimate winnings, inheritances, and commissions are never contingent on the recipient wiring money first.
●Because some victims believe they are joining a questionable deal, shame suppresses reporting; reducing that stigma is part of the countermeasure.

How to defend against it

►Take it as a rule that you never pay money to receive money; any prize, inheritance, or fund that requires an upfront fee is a scam.
►You cannot win a lottery you did not enter, and no stranger genuinely needs your bank account to move their fortune.
►Recognize the escalating-fee pattern: when "one last charge" keeps recurring, the sunk cost is the trap, and the right move is to stop, not to pay again.
►Verify any company, official, or law firm named through an independent source, not the contact details or documents the sender provides.
►Do not send funds by wire, gift card, or cryptocurrency to unknown parties abroad, and report the approach to reportfraud.ftc.gov or the FBI at ic3.gov.

From the Defense Playbook

Never Pay (or Move Money) to Protect Moneyseconds

No bank, agency, or company will ever ask you to move, withdraw, convert, or hand over your money to keep it safe, so any such request identifies the person making it as the threat.

Gift Cards Mean Scamseconds

Treat any demand to pay a debt, fine, fee, bail, or "security deposit" with gift cards, cryptocurrency, a wire to a stranger, a payment app, or cash handed to a courier as proof of fraud, because no legitimate institution collects money that way.

Tell Someone Before You Send Moneyminutes

Before sending money or sharing account details in response to any unexpected request, describe the situation out loud to one person who is not involved, because scams depend on the target deciding alone.

Every playbook entry states how strong its evidence is and when not to use it. Browse the full playbook.

References

Stajano, F., & Wilson, P. (2011). Understanding scam victims: seven principles for systems security. Communications of the ACM, 54(3), 70-75 · link
The need-and-greed and dishonesty principles that keep advance-fee victims paying and reluctant to report.
Maurer, D. W. (1940). The Big Con: The Story of the Confidence Man and the Confidence Trick. Bobbs-Merrill
Classic ethnography of confidence tricks showing the upfront-payment structure and the roping of the mark.
Federal Trade Commission (2024). Consumer Sentinel Network Data Book 2023. Federal Trade Commission · link
Prizes, sweepstakes, and lottery frauds among the categories tracked, with fees demanded before nonexistent payouts.

Last reviewed 2026-09-07

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