Quote from: tinoco on April 10, 2017, 11:48:41 PM

Quote from: Fixx on April 10, 2017, 06:57:47 PM

Prior to launching the merged mining, 51% attack was impossible due to the peculiarities of PoS & Pow. But now, we can take the next steps for real decentralization, getting rid of some hereditary features of Peercoin.

Hi Fixx or any forum member,

What makes a 51% attack impossible due to the peculiarities of PoS & Pow? How does PoS & PoW hybridity protect the network from a 51% attack. Could you explain in detail the peculiarities of PoS & PoW that makes a 51% attack impossible?

Best regards!

This is not a super detailed response but with PoW and PoS working in tandem it would essentially take someone having a minimum of both 51% of the network hashpower and at least 51% of the total coin supply in their posession.

This makes a 51% attack on Emercoin a self destructive move by the attacker since they would simultaneously be damaging the network and devaluing their own massive coin holdings.

In summary technically it was possible before merged mining but it would have been a fruitless move that required spending a large sum of money to perform. Only someone with several millions dollars to waste and a serious grudge against the Emer blockchain would have had the means to do it.