Definition ∞ Layer 1 security pertains to the fundamental cryptographic and consensus mechanisms safeguarding a blockchain’s base protocol. This security ensures the integrity and immutability of transactions and the overall network against various attack vectors, including 51 percent attacks and double-spending. It is established through proof-of-work or proof-of-stake algorithms, which secure the ledger and validate new blocks. Robust layer 1 security is paramount for the trustworthiness of any decentralized system.
Context ∞ News frequently covers upgrades and vulnerabilities related to layer 1 security, especially concerning major blockchain networks and their resilience. A critical debate involves the trade-offs between security, scalability, and decentralization inherent in different consensus mechanisms. Future advancements include research into quantum-resistant cryptography and more efficient, secure consensus protocols.
Blockchain Knowledge
Cryptocurrency Foundation
Cryptospace Newsfeed
