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# BigchainDB and Byzantine Fault Tolerance # BigchainDB and Byzantine Fault Tolerance
While BigchainDB is not currently [Byzantine fault tolerant (BFT)](https://en.wikipedia.org/wiki/Byzantine_fault_tolerance), we plan to offer it as an option. While BigchainDB is not currently [Byzantine fault tolerant (BFT)](https://en.wikipedia.org/wiki/Byzantine_fault_tolerance), we plan to offer it as an option.
We anticipate that turning it on will cause a severe dropoff in performance. See [Issue #293](https://github.com/bigchaindb/bigchaindb/issues/293). Update Nov 2017: we're actively working on this, the next release or two will likely have support. More details to come in blog form and github issues
Related issue: [Issue #293](https://github.com/bigchaindb/bigchaindb/issues/293). We anticipate that turning on BFT will cause a dropoff in performance (for a gain in security).
In the meantime, there are practical things that one can do to increase security (e.g. firewalls, key management, and access controls). In the meantime, there are practical things that one can do to increase security (e.g. firewalls, key management, and access controls).