Submission + - Bitcoin protocol vulnerability could lead to a collapse
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?