Section 4-A-201. Security Procedure

"Security  procedure"  means a procedure established by agreement of a
  customer and a receiving bank for the purpose of (1)  verifying  that  a
  payment order or communication amending or cancelling a payment order is
  that  of the customer, or (2) detecting error in the transmission or the
  content of the payment order or communication. A security procedure  may
  require  the  use  of  algorithms  or  other codes, identifying words or
  numbers, encryption, callback procedures, or similar  security  devices.
  Comparison  of  a  signature on a payment order or communication with an
  authorized specimen signature  of  the  customer  is  not  by  itself  a
  security procedure.