Golden
Selfish mining attack

Selfish mining attack

A selfish mining attack or block withholding attack is when a cryptocurrency miner decides to keep a valid block they have successfully mined secret instead of broadcasting it to the network.

A selfish mining attack, or block withholding attack, is a term used to describe a malicious attempt to discredit the integrity of a blockchain network. Selfish mining attacks occur when an individual in a mining pool attempts to withhold a successfully validated block from being broadcast to the rest of the mining pool network. After the selfish miner withholds their successfully mined block from the group they continue to mine the next block. This results in the selfish miner having demonstrated more proof-of-work compared to other miners in the mining pool, and allows them to claim the block rewards while the rest of the network adopts their block solutions. 

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Further reading

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Analyzing Bitcoin Security

Philippe Camacho





Majority is not Enough: Bitcoin Mining is Vulnerable

Ittay Eyal and Emin Gun Sirer

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