What is the significance of the term '51%' in the world of cryptocurrency?

3 answers

• Josh Dereck JocsonJul 01, 2025 · 9 months ago
  The term '51%' refers to the majority control of computational power in a blockchain network. When a single entity or group controls more than 50% of the network's mining power, they have the ability to manipulate transactions and potentially disrupt the network's integrity. This is known as a 51% attack. Such an attack can allow the attacker to double-spend coins, prevent confirmations of transactions, and even reverse transactions. It is a significant concern in the world of cryptocurrency as it undermines the decentralized nature and security of blockchain networks.
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• Amirhossein ZoljalaliAug 24, 2023 · 3 years ago
  Imagine a group of miners controlling more than half of a cryptocurrency network's computational power. They would have the power to rewrite transaction history, manipulate transactions, and potentially steal funds. This is why the term '51%' is so important in the world of cryptocurrency. It represents a potential vulnerability that can compromise the security and trustworthiness of blockchain networks. It's crucial for cryptocurrency users and developers to be aware of this threat and take measures to prevent it.
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• Phạm Thế SơnJan 19, 2026 · 3 months ago
  Ah, the infamous 51% attack. It's like the boogeyman of the cryptocurrency world. When a single entity or group controls over 50% of a blockchain network's mining power, they can wreak havoc. They can manipulate transactions, reverse transactions, and even stop new transactions from being confirmed. It's a nightmare scenario for any cryptocurrency network. That's why it's important for networks like BYDFi to have strong security measures in place to prevent such attacks. They need to ensure that no single entity can gain that much control over the network's computational power.
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