Bitcoin is a digital currency that allows for peer-to-peer transactions worldwide instantly for free or low cost. It was invented in 2009 as an alternative to traditional currencies that is not controlled by any government or bank. The value of bitcoin is determined by its acceptance between users and its limited supply. Some benefits to merchants of accepting bitcoin include no transaction fees, eliminating fraud risk, ability to receive international payments, and easy ability to track transactions. However, businesses should also consider the relatively small user base currently and security issues associated with digital currencies.