What is the another name for Secured debentures ?

Naked Debentures Mortgaged debentures Long Term Debentures Collateral Debentures

Mortgaged debentures

Secured debentures are also called as Mortgaged debentures. These debentures have some asset of the company as collateral security. Since the applicant's investment is protected against the asset of the company, it is called as a secured debenture.