(1). Except as otherwise provided in subsection (3), a bank with which a deposit account is maintained may exercise any right of recoupment or setoff against a secured party that holds a security interest in the deposit account.
(2). Except as otherwise provided in subsection (3), the application of this Article to a security interest in a deposit account does not affect a right of recoupment or setoff of the secured party as to a deposit account maintained with the secured party.
(3). The exercise by a bank of a setoff against a deposit account is ineffective against a secured party that holds a security interest in the deposit account that is perfected by control under section 9‑1104, subsection (1), paragraph (c), if the setoff is based on a claim against the debtor.