Most people don't know what a private key is, but they are one of the most powerful technologies that we all use every day. If you hold bitcoin 

 😂, there's a decent chance you have a vague idea of what a private key is but haven't thought much about why private key technology is so important.

Private keys have three fundamental superpowers. I like to call them by the incredibly catchy name "The Three U's."

bitcoin_beginners

![](https://m.stacker.news/35169)

> Most people don't know what a private key is, but they are one of the most powerful technologies that we all use every day. If you hold bitcoin ~or other crypto~ 😂, there's a decent chance you have a vague idea of what a private key is but haven't thought much about why private key technology is so important.
>
> Private keys have three fundamental superpowers. I like to call them by the incredibly catchy name "The Three U's."
> 
> Private keys are:
> 
> - Unique
> - Unguessable
> - Unforgeable
>
> Here's what that means.
>
> **[... read more](https://blog.casa.io/the-three-superpowers-of-private-keys/)**

