Byzantine Fault Tolerance (BFT) is the property of a system that safeguards the network from attack, even if some validators are acting maliciously.

In a BFT system, all of the validators of a network must agree, or reach a consensus about the current state of the blockchain. A network must have at least ⅔ of honest and reliable validators to be considered a usable network. If more than half of the validators (51% attack) of the network act maliciously, this can create problems surrounding the manipulation and exploitation of the network.

To learn more about Avalanche Consensus, please read the following article.


For any additional questions, please visit our knowledge base or contact a support team member via the chat button at support.avax.network.

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