Definition ∞ BFT Resilience describes a distributed system’s capacity to maintain correct operation even when some components experience failure or malicious behavior. This property is vital for Byzantine Fault Tolerant consensus algorithms, which are engineered to achieve agreement among distributed nodes despite adversarial actions. It quantifies the system’s ability to resist attacks and preserve data integrity and availability. Such resilience is fundamental for the trustworthiness of many blockchain protocols.
Context ∞ News frequently reports on protocol upgrades aimed at enhancing BFT resilience to better withstand sophisticated attacks and network partitions. Debates concern the trade-offs between increased resilience and scalability, as more robust fault tolerance often requires greater communication overhead. Observing new consensus algorithms that optimize for both security and performance remains a key area of interest.
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