What type of assignment would restrict the policyowner's rights to the insurer?

A collateral assignment is a temporary transfer of rights in an insurance policy to a lender or creditor as security for a loan or obligation. This type of assignment allows the policyowner to retain ownership and control over the policy while providing the lender with a claim to the policy's death benefit in case of default on the loan. Because the rights are limited to the extent of the collateral, the policyowner's rights to the insurer, such as the ability to change beneficiaries or receive policy benefits, may be restricted until the obligation is fulfilled.

In contrast, full assignments typically transfer all rights permanently to another party, while conditional and permanent assignments do not explicitly imply a temporary limitation of rights similar to a collateral assignment.