Banks Start Sharing Fraud Signals at Network Speed

Fraud migrated to the seams between institutions, mule accounts at one bank receiving scam proceeds from another, and the defense is finally migrating with it. Banks in several markets now share fraud signals through real-time exchanges and consortium models, scoring transactions with intelligence no single institution holds.

Instant payments forced the cooperation. When money clears in seconds, the receiving bank's knowledge matters at authorization time, not in next week's report, and liability reforms that split scam losses between sending and receiving institutions aligned incentives that decades of polite information-sharing never did.

Privacy engineering made the sharing legal: hashed identifiers, federated scoring, and confidential matching let institutions compare notes without exchanging customer data wholesale. Fraud teams describe the network effect plainly, every joining bank makes the mule map more complete.