A validator is a participant responsible for verifying transactions and securing a blockchain network. Validators are commonly used in proof-of-stake and related consensus mechanisms. They are selected based on staked assets and network rules rather than computational power. In return for their role, validators earn transaction fees or block rewards. Validators are essential to maintaining network security and reliability.
Coinbase has formed an independent advisory board of cryptography and quantum experts to evaluate long-term risks that quantum computing could pose to Bitcoin and blockchain security.
Hundreds of crypto wallets across EVM-compatible chains have been drained in an ongoing attack, with investigators yet to identify the root cause or point of compromise.