Nice post: https://helenix.com/blockchain-security/
Blockchain security refers to the measures taken to ensure the confidentiality, integrity, and availability of data stored on a blockchain network. Given the decentralized nature of blockchain technology and the fact that it holds valuable assets, such as cryptocurrency, it's important to ensure that the network and the data stored on it are secure.
One of the key features of blockchain security is the use of cryptography. Cryptography is used to encrypt data, allowing it to be securely transmitted and stored on the network.