The blockchain world is evolving at a frenetic pace, and it can be hard to keep up. If you’re new to the space, we hope you can turn to this glossary of terms as you build up your knowledge of this rapidly evolving field. Check Methodology.
In a Proof of Work blockchain, a 51% attack occurs when a participant attempts to take control of a network by controlling 51% of the hashrate in the case of a Proof of Work coin, or 51% of the total number of coins in a Proof of Stake system. A successful 51% attack can enable the attacker to revert transactions or double spend coins.
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