U.S. Treasury securities are government-issued financial instruments used to borrow money. They come in several forms, including Treasury bills, Treasury notes, and Treasury bonds, each differing in maturity length and interest payment schedules. These securities are considered low-risk investments because they are backed by the full faith and credit of the U.S. government. Investors purchase Treasury securities to earn interest over time, with the principal amount returned at maturity. They are commonly used by individuals, institutions, and foreign governments as a safe place to park funds. The interest earned is exempt from state and local taxes, making them an attractive option for many investors.