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.

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

Build on Avalanchese Apps on Avalanche | Validate on Avalanche

Build on Avalanche

Did this answer your question?