Control of deposit account.

(1) A secured party has control of a deposit account if: (a) the secured party is the bank with which the deposit account is maintained; (b) the debtor, secured party, and bank have agreed in a signed record that the bank will comply with instructions originated by the secured party directing disposition of the funds in the deposit account without further consent by the debtor; (c) the secured party becomes the bank's customer with respect to the deposit account; or (d) another person, other than the debtor: (i) has control of the deposit account and acknowledges that it has control on behalf of the secured party; or (ii) obtains control of the deposit account after having acknowledged that it will obtain control of the deposit account on behalf of the secured party. (2) A secured party that has satisfied Subsection (1) has control, even if the debtor retains the right to direct the disposition of funds from the deposit account.