A ____________ attack is when a blockchain network participant modifies the network's transaction history to their advantage.
- 51%
- DDoS
- Man-in-the-Middle
- Sybil
A 51% attack occurs when a single participant or a group controls more than 50% of a blockchain network's mining power. This allows them to manipulate the transaction history, potentially leading to double-spending or other malicious activities. Understanding the concept of 51% attacks is crucial for assessing the security and decentralization of blockchain networks.__________________________________________________
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