51% Attack

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Meaning: 51% Attack

A 51% attack is a situation where more than half of the computing power on a network is operated by a single individual or concentrated group, which gives them complete and total control over a network.

Things that an entity with 51% of the computing power can do include, but are not limited to:

Halting all mining.

Halting and manipulating all interpersonal transactions.

Double Spending using singular coins over and over (this simply means that they can spend same coin/token money twice by deleting transactions from the Blockchain records).

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