Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say.Edward Snowden
UMBRA uses ShadowCash as its underlying currency. It goes beyond other digital currencies to make transactions invisible to the public eye, but still nearly seamless for users, who can conduct their business privately anywhere in the world.
ShadowCash makes use of dual-key stealth address and ring signatures enabling secure anonymous transactions. The blockchain reaches consensus by a Proof-of-Stake protocol, currencyholders earn an annual 2% income on their SDC holdings when staking.