A CDB, or Certificate of Deposit, is a financial product offered by banks and credit unions that allows individuals to deposit money for a fixed period in exchange for interest. The interest rates on CDBs are typically higher than regular savings accounts, making them an attractive option for savers. However, funds are usually locked in until the maturity date, and early withdrawal may incur penalties. CDBs come in various terms, ranging from a few months to several years. They are considered low-risk investments, as they are often insured by the Federal Deposit Insurance Corporation (FDIC) in the United States, providing security for depositors' funds.