In plain words
A cloned voice on a call or a faked video message can be used to ask for a payment.
Why it matters to a firm
A voice that sounds like a partner is not proof of who is calling. A payment rule that needs a call back on a number you already hold defeats most of these attempts.
The check behind the finding
Agree a call-back rule for any payment request, and use a number you already have, never one given in the message.