For the purposes of ensuring the repayment of credit, the following types of security are used:
a. penalty (contractual sanctions for late payment);
b. pledge (mortgage);
c. surety (guaranty);
d. bank guaranty.
In practice, pledge of immovable property (mortgage) is the most common type of security. Among other things which may be used as collateral are any movable property or property rights including equipment, transport, goods in turnover, securities, accounts receivable, etc.