Okla. Stat. tit. 12A, § 1-9-628
Oklahoma Code Comment
This section is new and insulates a secured party from liability to an unknown debtor or obligor or a person who has filed a financing statement against such a person. For example, a secured party may not know that the original debtor has sold the collateral subject to the security interest and thus the new owner has become a debtor.
Further, a secured party is not liable because of an act or omission arising from a reasonable belief that a transaction is not a consumer--goods transaction or a consumer transaction or that the goods are not consumer goods. Compare 14A Okla. Stat. section 5-202(7) . There also is insulation against double liability.