Distributed Consensus Security

Definition ∞ Distributed Consensus Security refers to the methods and properties that ensure the integrity and immutability of a blockchain or distributed ledger system. It relies on a network of independent nodes agreeing on the state of the ledger, making it highly resistant to manipulation. This security model is fundamental to the trustworthiness of decentralized digital assets. It protects against malicious actors attempting to alter transaction histories.
Context ∞ Discussions about distributed consensus security are central to evaluating the robustness of various blockchain protocols, particularly concerning scalability and decentralization trade-offs. News often highlights advancements in consensus algorithms or potential vulnerabilities discovered in existing systems. Understanding this concept helps interpret reports on network attacks, protocol upgrades, and the long-term viability of different digital asset projects.