Mississippi Code
Subpart 2 - Perfection
§ 75-9-310. When filing required to perfect security interest or agricultural lien; security interests and agricultural liens to which filing provisions do not apply

Except as otherwise provided in subsection (b) and Section 75-9-312(b), a financing statement must be filed to perfect all security interests and agricultural liens.
The filing of a financing statement is not necessary to perfect a security interest:
If a secured party assigns a perfected security interest or agricultural lien, a filing under this article is not required to continue the perfected status of the security interest against creditors of and transferees from the original debtor.