ECC is a type of public-key cryptography that uses math from elliptic curves to create secure keys.
The 'one-way' function used in ECC makes it difficult for hackers to reverse-engineer the private key from the public key, which is why it has become the standard in blockchain security.
ECC's properties make it smaller and faster than other cryptography methods like RSA, making it perfect for high-volume blockchains where speed and low costs are crucial.