A blockchain is a kind of database invented in 2008 that stores and secures information in sequential blocks. Unlike the case with traditional databases, a blockchain’s contents are not kept on a ...

Imagine a notebook that everyone in the world can see but no one can erase. Now imagine that this notebook isn’t stored in just one place, but copied and constantly updated on millions of computers at ...

David is a financial writer based out of Delaware. He specializes in making investing, insurance and retirement planning understandable. Before writing full-time, David worked as a financial advisor ...