The first one is unsecured, the second one secured.
Secured lending differs from unsecured lendings in a number of a ways, although there is one big difference between them. A secured lending is such named before the lendee puts up collateral against the debt to the bank. An unsecured lending has no collateral.
The difference between an unsecured loan and a secured loan is very big if for some reason bankruptcy is declared or the loan cannot pay repaid. Secured means that the buyer still needs to repay and unsecured mean he doesn't if bankruptcy is declared.
Secured bonds are those bonds on behalf of which company has pledged some kind of assets security in bank for refund of bonds while unsecured bonds are reverse of secured bonds which means these bonds don't have the security of any assets for refund.
Secured loans are backed by an asset, to be collateral in case the borrower defaults on the loan. An unsecured loan does not have this and usually costs more and has a higher risk to the bank.
A secured debt - is protected by being tied to something valuable (jewellery, car, house etc). If you default on the repayments, you could lose the item the debt is secured on ! An unsecured debt is not tied to any physical property. If you default on an unsecured debt, they will usually take you to court and have the debt recovered from your wages.
A secured bond requires collateral to be pledged to cover the bond amount if the defendant fails to appear in court. An unsecured bond does not require collateral, but the defendant may owe the full amount if they do not appear in court as required.
Secured and unsecured are the two main types of loans. Secured loans require the borrower to give some form of security to the lender, like a home or car. Unsecured loans do not require any kind of collateral.
A secured loan is where there is a physical item that can be claimed if the loan is not paid - a house, a car, jewelry, etc. An unsecured loan is where there is nothing for a bank to take to get its money back if you default, such as education loans, credit cards and similar loans.
A secured loan would be a car loan for example. The car is used as collateral for the loan. A signature loan would be an unsecured loan. The only thing the lender would do is look at your credit worthiness and make you a loan based on you simply saying you'll pay them back.
The difference between an unsecured loan, and a secured loan is pretty substantial. A house, or a car is used as collateral and therefore secures the loan for the lender. For an unsecured loan, there is no collateral available to the lender.
Unsecured credit cards allow free spending with a credit limit. They are the most common type of credit card and are based upon trust. Secured credit cards are backed by funds that are pre-paid into the account or collateral. They are more like a loan.