Digital Currency: What the Heck Is It?

When you consider the fact that any series of transactions can be tracked with one hundred per cent accuracy (what’s called an immutable audit trail), and that built-in encryption means it’s inherently secure, blockchain suddenly becomes the ideal technology for a variety of financial functions and exchange mechanisms. And forward-thinking companies, including some of our country’s big banks, are already investing in that potential.

Source: Digital Currency: What the Heck Is It?