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If a hacker wanted to alter a blockchain, what percentage of the block copies would he have to alter?
46. If a hacker wanted to alter a blockchain, what percentage of the block copies would he have to alter?
- Only his copy
- 1%
- 51%
- 100%
Answer: C) 51%
Explanation:
If a hacker intended to change a blockchain, he'd only be able to block 51% of block copies.