Okla. Stat. tit. 12A, § 12A-4A-202

AUTHORIZED AND VERIFIED PAYMENT ORDERS

(a) A payment order received by the receiving bank is the

authorized order of the person identified as sender if that person

authorized the order or is otherwise bound by it under the law of

agency.

(b) If a bank and its customer have agreed that the

authenticity of payment orders issued to the bank in the name of the

customer as sender will be verified pursuant to a security

procedure, a payment order received by the receiving bank is

effective as the order of the customer, whether or not authorized,

if (i) the security procedure is a commercially reasonable method of

providing security against unauthorized payment orders, and (ii) the

bank proves that it accepted the payment order in good faith and in

compliance with the bank's obligations under the security procedure

and any agreement or instruction of the customer, evidenced by a

record, restricting acceptance of payment orders issued in the name

of the customer. The bank is not required to follow an instruction

that violates an agreement with the customer, evidenced by a record,

or notice of which is not received at a time and in a manner

affording the bank a reasonable opportunity to act on it before the

payment order is accepted.

(c) Commercial reasonableness of a security procedure is a

question of law to be determined by considering the wishes of the

customer expressed to the bank, the circumstances of the customer

known to the bank, including the size, type, and frequency of

payment orders normally issued by the customer to the bank,

alternative security procedures offered to the customer, and

security procedures in general use by customers and receiving banks

similarly situated. A security procedure is deemed to be

commercially reasonable if (i) the security procedure was chosen by

the customer after the bank offered, and the customer refused, a

security procedure that was commercially reasonable for that

customer, and (ii) the customer expressly agreed in a record to be

bound by any payment order, whether or not authorized, issued in its

name and accepted by the bank in compliance with the bank's

obligations under the security procedure chosen by the customer.

(d) The term "sender" in this article includes the customer in

whose name a payment order is issued if the order is the authorized

order of the customer under subsection (a), or it is effective as

the order of the customer under subsection (b).

(e) This section applies to amendments and cancellations of

payment orders to the same extent it applies to payment orders.

Oklahoma Statutes - Title 12A. Uniform Commercial Code Page 359

(f) Except as provided in this section and in paragraph (1) of

subsection (a) of Section 11 of this act rights and obligations

arising under this section or Section 11 of this act may not be

varied by agreement.