Can you explain the differences between a secured credit card and an unsecured credit card?

A secured credit card requires a security deposit as collateral, while an unsecured credit card does not. The security deposit on a secured card acts as a guarantee for the credit limit, making it easier to qualify for, especially for those with limited or poor credit history. On the other hand, an unsecured credit card does not require a deposit but typically requires a good credit score for approval.