Commercial Code § 9332
CHAPTER 3. Perfection and Priority
(a) A transferee of tangible money takes the money free of a security interest if the transferee receives possession of the money without acting in collusion with the debtor in violating the rights of the secured party.
(b) A transferee of funds from a deposit account takes the funds free of a security interest in the deposit account if the transferee receives the funds without acting in collusion with the debtor in violating the rights of the secured party.
(c) A transferee of electronic money takes the money free of a security interest if the transferee obtains control of the money without acting in collusion with the debtor in violating the rights of the secured party.