51% attack

A 51% attack lets one miner control most of a blockchain’s power—enabling double spending and invalidating honest transactions.

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Logo of Taurus in black uppercase letters with a small pink square accent on the top left of the T.
Caceis Investor Services logo with the tagline solid & innovative.
Regtank logo with a green horizontal line crossing the text.
Banque Delubac & Cie company logo with the text 'Depuis 1924'.
Changelly logo featuring a green rocket icon next to the word 'changelly' in lowercase gray letters.
OSL logo with text Asia's leading digital asset brokerage.

What is

51% attack

?

When the mining reward is low, it is logical that only a few miners validate blocks. At this point, a miner can easily hold 51% of the network's computing power. This is when a 51% attack occurs. The miner can then start mining fraudulent transactions, such as double spending, and invalidate other transactions.

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