Counterfeit currency refers to fake money produced with the intention of deceiving people. Synonyms for counterfeit currency include fake money, phony currency, fraudulent cash, false notes, bogus bills, imitation money, and forged funds. Other terms for counterfeit currency include fake banknotes, copied currency, and fraudulent notes. Counterfeit currency is a serious problem as it not only affects individuals but also harms the economy and financial institutions. To prevent the spread of counterfeit currency, governments and financial institutions take extensive measures to educate people on how to identify such money as well as to use advanced technology and security features in currency production.