Launched in 2009, Bitcoin is currently the largest and most popular virtual currency. However, many other virtual currencies have emerged over the past several years, such as Litecoin, Dogecoin, and Peercoin.1 Meanwhile, even more virtual currencies are being developed; one of these is Dash (formerly Darkcoin), which offers even more anonymity and privacy than that provided by Bitcoin. Another new and specialized virtual currency is DopeCoin, which was developed for those who wish to purchase marijuana, either legally or illegally.