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Proof of stake is not secure in the same way as proof of work. Miner collusion attacks are free in PoS, expensive in PoW.
by centimeter 6y ago
Proof of stake is not secure in the same way as proof of work. Miner collusion attacks are free in PoS, expensive in PoW.
- bpodgursky 6y agoIt's only "free" if you get a substantial fraction of the coin's total wealth backing your attack. And it's not really "free", because you'd instantly devalue the currency itself (and thus your own stake).