Okla. Stat. tit. 12A, § 12A-4A-201: Security procedure

SECURITY PROCEDURE

"Security procedure" means a procedure established by agreement

of a customer and a receiving bank for the purpose of (i) verifying

that a payment order or communication amending or canceling a

payment order is that of the customer, or (ii) detecting error in

the transmission or the content of the payment order or

communication. A security procedure may impose an obligation on the

receiving bank or the customer and may require the use of algorithms

or other codes, identifying words, numbers, symbols, sounds,

biometrics, encryption, callback procedures, or similar security

devices. Comparisons of a signature on a payment order or

communication with an authorized specimen signature of the customer

or requiring a payment order to be sent from a known email address,

IP address, or telephone number is not by itself a security

procedure.