Unlike ACH, which batches transfers, a wire moves directly between banks, often settling the same day. This makes it the standard choice for real estate closings, large one-off vendor payments, international transactions, and any case where waiting days for ACH settlement isn't acceptable.
That same speed and finality is exactly what makes wire fraud so damaging: once sent, a wire is very difficult to reverse, so a fraudulent instruction (a fake CEO request, a compromised vendor email asking for new bank details) can result in an unrecoverable loss within hours.
Why are wires such a common fraud target?
Because they're fast and hard to reverse. A fraudster only needs to convince someone to authorize one wire, often through a spoofed email or a fake urgent request, to move money out permanently before anyone notices the request wasn't legitimate.
What verification steps typically apply before a wire is sent?
A callback to a known, independently verified phone number (not one provided in the payment request itself), dual approval above a threshold, and matching the request against existing vendor master data are common controls specifically designed to catch wire fraud before funds move.
Can a wire transfer be recalled once sent?
Sometimes, if caught within minutes and the receiving bank cooperates, but there's no guarantee, and international wires in particular are often effectively final once the receiving bank has credited the funds.
How should an AI agent handle a wire payment request?
By treating any wire, especially a new or changed payee, as inherently higher-risk than a routine ACH payment, verifying the request against established vendor master data and requiring explicit human approval rather than allowing straight-through processing.