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What Is the Risk of Large Mining Pools Centralizing the Network?

Large pools controlling over 51% of the hash rate risk network centralization and the potential for a 51% attack.
Greeks.Live18.11.25

What Is the Risk of Large Mining Pools Centralizing the Network?

Large mining pools, by controlling a significant portion of the total hash rate, pose a centralization risk. If a single pool or a small group of pools controls over 51% of the hash rate, they could theoretically attempt a 51% attack, such as censoring transactions or reversing recent ones.

This is a constant concern for network decentralization.

What Is “Stake Centralization” and Why Is It a Concern for PoS Security?
What Is a Hash Rate and How Does It Relate to Network Difficulty?
How Does a Pool’s Payout Scheme Affect Miner Loyalty and Centralization?
What Is the ‘51% Attack’ and How Does It Apply to PoW versus PoS?

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