51% attack

A 51% Attack, also known as a Majority Attack, occurs when a malicious actor or a group working together gains control of more than 50% of a blockchain network's total mining power (hashrate). This control allows them to disrupt the network's integrity and operations in several harmful ways. The potential actions of an attacker with such control include:

Share this term

Asset Allocation

See full definition

Atomic Swap

See full definition

Crypto scoop

Sign up for our weekly newsletter

Stay informed with the latest updates to buy, sell, and store your crypto on the go.

phone

Download the Yellow Card app

Start trading crypto with ease

Get the Yellow Card app to buy, sell, and store your crypto on the go.