> For the complete documentation index, see [llms.txt](https://tokens-economy.gitbook.io/consensus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tokens-economy.gitbook.io/consensus/chain-based-pbft-and-bft-based-proof-of-stake/untitled.md).

# Modified Federated Byzantine Agreement (mFBA)

FBA organises nodes into groups call quorums whereby overall consensus is met by: Quorum consensus among a certain amount of nodes (within a specific quorum); then Consensus among a certain number of quorums to finally determine the final consensus.

![mFBA](https://raw.githubusercontent.com/cedricwalter/blockchain-consensus/master/images/mFBA.png)

#### pros

* Decentralized control
* Low latency
* Flexible trust
* Asymptotic security

  **Read more**
* [Medium](https://medium.com/@boscoin/dpos-mfba-c84bae2e21ae)