A consensus mechanism is the method a blockchain network uses to agree on the validity of transactions and the state of the ledger. It ensures that all participants share the same version of the blockchain without relying on a central authority. Common consensus mechanisms include proof of work and proof of stake. Each approach balances security, decentralization, and efficiency differently. Consensus mechanisms are fundamental to how blockchains function and remain secure.
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.