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Bitcoin Protocol Vulnerability Could Lead To a Collapse

First time accepted submitter stanga writes "Cornell researchers unveiled an attack on the Bitcoin mining protocol that enables selfish mining pools to earn more than their fair share. In a technical report the authors explain this attack can be performed by a pool of any size. Rational miners will join this pool to increase their benefits, creating a snowball effect that may end up with a pool commanding a majority of the system's mining power. Such a pool would be able to single-handedly control the blockchain, violating the decentralized nature of the increasingly successful Bitcoin. The authors propose a patch to the protocol that would protect the system from selfish mining pools smaller than 25% of the system. They also show that Bitcoin can never be safe from selfish mining pools larger than 33% of the network, whereas it was previously believed that only groups larger than 50% of the network were a threat to the system. The question is — can the miners operating today adopt the suggested fix and dismantle too-large pools before a selfish mining pool arises?"

3 of 256 comments (clear)

  1. I wonder by cold+fjord · · Score: 3, Funny

    Did the "selfish mining pools" us a Greedy algorithm?

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    much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot - George Orwell
  2. I'll invest in bitcoin mining... by acroyear · · Score: 1, Funny

    when the tulips start to bloom again.

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    "But remember, most lynch mobs aren't this nice." (H.Simpson)
    -- Joe
  3. Re:The Wild West by 93+Escort+Wagon · · Score: 5, Funny

    How can they be exciting? It already costs more in power bills than you make mining and you have to have specialist hardware (unless you're stealing cycles elsewhere or are a retard when it comes to money).

    Parents are paying the electricity bills and buying the computers.

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    #DeleteChrome