3 ms·
51% attacks can only block transactions, not undo them or fake them.
by user-the-name 5y ago
51% attacks can only block transactions, not undo them or fake them.
- deleted 5y ago[deleted]
- _nhynes 5y agoIt can also corrupt state if the target clients are light (and only verify headers).
- xiphias2 5y agoThey can undo previous transactions / blocks, but it takes a lot of work (the older the block the more work it takes). For recent transactions (last block) it may be practical, that's why 6 confirmations are advised for high value transfers.