70A-9a-340. Effectiveness of right of recoupment or set-off against deposit account.
(1) Except as otherwise provided in Subsection, a bank with which a deposit account is maintained may exercise any right of recoupment or set-off against a secured party that holds a security interest in the deposit account. (3)
(2) Except as otherwise provided in Subsection, the application of this chapter to a security interest in a deposit account does not affect a right of recoupment or set-off of the secured party as to a deposit account maintained with the secured party. (3)
(3) The exercise by a bank of a set-off against a deposit account is ineffective against a secured party that holds a security interest in the deposit account which is perfected by control under Subsection, if the set-off is based on a claim against the debtor. 70A-9a-104(1)(c)