Zcash, a Harder-to-Trace Virtual Currency-How is it so secure?

Zcash, led by a developer named Zooko Wilcox, has the support of privacy activists and computer scientists at Johns Hopkins University and Massachusetts Institute of Technology.

Zcash’s developers say they have used advanced cryptography to create a virtual currency that can be sent around the world essentially without a trace, unlike Bitcoin.

While Bitcoin was initially described as an anonymous currency, its transactions are recorded on a public ledger that can be tracked and traced by law enforcement. Each Bitcoin user has an address, made up of letters and numbers, and the authorities are often able to link an address to a real person using sophisticated data analysis.

In contrast, Zcash uses a method developed by a team of cryptographers working at M.I.T. and in Israel — known as zk-Snark — that allows transactions to be confirmed by the network without anyone recording the Zcash addresses involved in the transactions. Users can opt out of this privacy function.