Ever noticed getting random USDC dust right after a transfer? There's actually a system behind it. Scammers harvest wallet addresses from on-chain transactions, then execute airdrop attacks targeting those addresses with worthless tokens. The operation becomes profitable once someone inevitably interacts with one of those tokens—that single mistake gives attackers access to the wallet. It's a numbers game: they hit thousands of addresses betting that someone will click, approve, or swap without reading the contract. A solid reminder to always verify before approving any token interaction.