What is a 51% attack in blockchain?
a) An attack that disrupts mining
b) When a miner or group controls more than 51% of the blockchain’s computational power
c) An attack to steal private keys
d) A way to fork the blockchain
Answer:
b) When a miner or group controls more than 51% of the blockchain’s computational power
Explanation:
A 51% attack occurs when an entity controls more than 51% of the blockchain’s computational power, allowing them to manipulate the network’s transactions.