During the initial days of Bitcoin, the digital currency was considered to be anonymous in nature. People believed that bitcoin transactions can never be tracked, making it an ideal currency for illegitimate transactions and dealings. However, it was later established that bitcoin transactions are pseudonymous at best and not completely anonymous. However, this could soon be a thing of the past. ZCash is the latest kid on the block that claims to be completely anonymous.
http://www.livebitcoinnews.com/will-zcash-private-cryptocurrency-be-the-next-bitcoin-killer/
