Section 810 ILCS 5/9-327 - Priority of security interests in deposit accountThe following rules govern priority among conflicting security interests in the same deposit account:
(1) A security interest held by a secured party having control of the deposit account under Section 9-104 has priority over a conflicting security interest held by a secured party that does not have control.(2) Except as otherwise provided in paragraphs (3) and (4), security interests perfected by control under Section 9-314 rank according to priority in time of obtaining control.(3) Except as otherwise provided in paragraph (4), a security interest held by the bank with which the deposit account is maintained has priority over a conflicting security interest held by another secured party.(4) A security interest perfected by control under Section 9-104(a)(3) has priority over a security interest held by the bank with which the deposit account is maintained. P.A. 91-893, eff. 7/1/2001.