A widespread bug has compromised a special type of bitcoin transaction that is supposed to discourage miners from cheating, new research shows.
One of the worst things to happen to a proof-of-work cryptocurrency is a 51 percent attack. Such attacks undermine the immutability—and consequently the trust—in a blockchain.
So far this year, hackers have executed at least five separate '51-percent attacks' on cryptocurrency projects, with profits amounting to almost $20M.
'We urge all network participants to upgrade to [the new software] as soon as possible,' said the cryptocurrency developer who discovered the bug
Bitcoin blocks experienced up to 95 percent congestion this month, but it didn't impact its transaction fees, which remain at around $0.1
Bitcoin may be vulnerable to an attack on mining pools based in China despite a decentralized enough hashpower, giving credence to technology like Dash’s ChainLocks even for large hashrate ...
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