What is Advance-Fee Scam?

An advance-fee scam persuades you to pay a small sum now to unlock a much larger prize, refund, or reward later, one that never materialises. In crypto, it appears as “pay a gas fee to claim your airdrop”, “send a deposit to release your withdrawal”, or “pay a tax to receive your winnings.” Once you pay, the scammer either vanishes or invents more fees.

This matters because it preys on the excitement around rewards and airdrops, turning anticipation into a trap.

Example: a message says you have won a large token prize but must first send a small amount of crypto to cover “processing.” After you pay, a new fee appears, and the prize never arrives.

Safety note: legitimate rewards, airdrops, and withdrawals never require you to send crypto to a person or wallet to unlock them. Real gas fees are paid to the network automatically from your own balance, not handed to a stranger. Any request to pay upfront to receive something bigger is fraud, full stop. Related terms include recovery scam, pig butchering, gas fee, and claim window.