51% Attack

Pronounced: [fif-tee-wuhn per-sent uh-tak]

Definition: A situation where a single entity or group gains control of more than 50% of a blockchain’s mining or validation power, allowing them to manipulate transactions or double-spend coins.

Origin: The concept has been discussed since the inception of Bitcoin, highlighting a potential vulnerability in decentralized networks.

Used in a Sentence: “A 51% attack on Bitcoin would require an enormous amount of computational power.”

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