• A bond is a tripartite contract in which an insurer agrees to pay damages caused by criminal acts (such as a pledge of fidelity) or the failure to perform a specific act (such as a performance obligation or surety). The principal (i.e., the party paying the premium on the bond) is also called the debtor (i.e., the party with an obligation to perform). In the event of a default, the guarantor (i.e., the insurer) pays for the losses of the third party (creditor). Then the debtor must reimburse the guarantor for the amount of the paid loss.