Pig butchering did 7.2B USD in reported US losses in 2025. The interesting part is the payment rail design: mule IBANs, card on-ramps, and exchange accounts opened in the victim's own name

Two numbers from the FBI IC3 2025 report that usually get blurred together: crypto investment fraud (the pig butchering pattern) was 7.2B USD, the largest single loss category, while the broader "cryptocurrency mentioned as payment rail" descriptor was 11.37B, up 22 percent year over year. Different things. The first is the scheme, the second is every crime that touched crypto on the way.

What the case files show about rail design, in order of appearance:

Stage one is fiat and boring: a plain SEPA or domestic transfer to a mule account in the victim's country, opened on a rented identity, drained within hours.

Stage two is card on-ramps: the victim buys USDT or BTC through legitimate processors, the merchant descriptor on the bank statement looks clean, and the crypto goes to an address dictated in chat.

Stage three is the elegant one: an account at a real exchange gets opened with the victim's own KYC documents, extracted earlier under a courier or ticket-booking pretext. Then the account gets linked to the operator's infrastructure: withdrawal address whitelists, sub-accounts, sometimes API keys. Every deposit the victim makes drains out on its own. On-chain and on paper, the victim looks like the launderer. That is not a side effect, that is the design goal.

Zoom out and the scale makes sense: UNODC's Inflection Point report describes industrial scam centers in Southeast Asia clearing close to 40B a year, and TRM's 2026 crypto crime report puts roughly 35B moving into fraud schemes over the year. This is logistics, not romance.

Practical takeaways for this sub: withdrawal whitelist changes and API key grants on a fresh account are the tell; exchanges hold exactly the evidence prosecutors need (KYC, device IDs, IP logs, linkage between accounts), and a properly targeted preservation request early in a case does more than any on-chain sleuthing later. If someone you know is "investing with a partner they met online," check whether they can withdraw ten dollars. The answer settles the question.