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Byzantine Fault Tolerance (BFT)

Byzantine Fault Tolerance (BFT)

Last Updated: January 11, 2026

Byzantine Fault Tolerance (BFT) is a system's ability to function correctly even if some components fail or act maliciously.

Byzantine Fault Tolerance (BFT) is a crucial concept in distributed computing. It ensures a system remains operational even if some nodes behave unpredictably or maliciously. BFT is vital in blockchain networks. It helps achieve consensus despite potential faults or attacks. Named after the Byzantine Generals Problem, it addresses challenges in ensuring agreement among distributed parties. BFT is essential for maintaining security and reliability. Especially in environments lacking trust. It allows systems to withstand failures and continue processing transactions without disruption.