(a)Perfection by control. A security interest in controllable accounts, controllable electronic records, controllable payment intangibles, deposit accounts, electronic documents, investment property, or letter-of-credit rights may be perfected by control of the collateral under Section 7-106, 9-104, 9-106, 9-107, or 9-107A.
(b)Specified collateral: time of perfection by control; continuation of perfection. A security interest in controllable accounts, controllable electronic records, controllable payment intangibles, deposit accounts, electronic documents, or letter-of-credit rights is perfected by control under Section 7-106, 9-104, 9-107, or 9-107A not earlier than the time the secured party obtains control and remains perfected by control only while the secured party retains control.
(c)Investment property: time of perfection by control; continuation of perfection. A security interest in investment property is perfected by control under Section 9-106 not earlier than the time the secured party obtains control and remains perfected by control until:
(1) the secured party does not have control; and
(2) one of the following occurs:
(A) if the collateral is a certificated security, the debtor has or acquires possession of the security certificate;
(B) if the collateral is an uncertificated security, the issuer has registered or registers the debtor as the registered owner; or
(C) if the collateral is a security entitlement, the debtor is or becomes the entitlement holder.