# BBA\* in Algorand: Can Malicious Nodes Influence Consensus on an Empty Block?

**URL:** <https://forum.algorand.co/t/bba-in-algorand-can-malicious-nodes-influence-consensus-on-an-empty-block/14404>\
**Category:** General\
**Created:** [March 27, 2025, 3:44pm UTC](https://forum.algorand.co/t/bba-in-algorand-can-malicious-nodes-influence-consensus-on-an-empty-block/14404 "2025-03-27T15:44:24Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![francesco0600](https://avatars.discourse-cdn.com/v4/letter/f/74df32/32.png) [@francesco0600](https://forum.algorand.co/u/francesco0600)\
**Post date:** [March 27, 2025, 3:44pm UTC](https://forum.algorand.co/t/bba-in-algorand-can-malicious-nodes-influence-consensus-on-an-empty-block/14404/1 "2025-03-27T15:44:24Z")

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Hi everyone,

I’m currently studying the Algorand protocol in detail, specifically by reading the paper “_Algorand: A Secure and Efficient Distributed Ledger_”.

In the BBA\* protocol, nodes must reach consensus on either a proposed block or an empty block. I was wondering if, at least theoretically, malicious nodes could manipulate the process to force consensus on the empty block or increase the likelihood of it being accepted.

I hope my question is clear. Thank you!

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