What exactly are cryptocurrencies?

Let me explain some fundamentals.
Cryptocurrencies have become the "talk of the town" for a variety of reasons, ranging from massive returns to widespread adoption. Despite this, very few people understand the basics of cryptocurrencies. More importantly, what is this one-of-a-kind innovation that is creating such a stir around digital currencies?
If you want to learn and understand this concept, you've come to the right place. My academy focuses on helping readers understand the fundamentals of cryptocurrency and blockchain in order to make sound decisions.
• What are cryptocurrencies?
• Key characteristics of cryptocurrencies
• The major cryptocurrencies