Quote from: FrictionlessCoin on January 17, 2014, 05:31:17 PM

Quote from: RoadTrain on January 17, 2014, 04:59:00 PM

You need to rethink this thing.
Security doesn't mean anything on its own. It only means when there's an attack vector, in this case a hashrate attack.
But in PPC you can't attack the chain with pure PoW. Well, you can in theory, but it's highly unpredictable compared to this kind of attack on a pure PoW system.
So yes, PoS DOES secure the network. And that's plain fundamentals in PPC case.
I assume you didn't bother learning about PPC's approach to security in depth.
I can't blame you, but at least stop posting about something you don't know much about like you do.

You are simply trying to deflect the obvious argument that IXC with 5,800 terahash of network hash rate is an order of magnitude more secure than PPC with 580 terahash rate.

There are 5,800 1 THs class machines securing the IXC network as compared to a a paltry 580 1 THs machines for the PPC network.

To even claim that PoS compensates for this gross deficiency is like claiming that a Humvee is more secure than a M1-A1 Abrahms Battle tank because it is smaller. Give me a break!!!

I said no word about IXC, and its security is even more debatable than PPC's.
I mean it's totally incorrect to compare pure PoW systems and hybrid ones. Especially when PoS plays only marginal role in securing the network.

As of markm's comment about PPC's centralization, that may be true, I didn't follow closely its latest developments, but it was planned that checkpointing made optional.
Any PoS coin is vulnerable in its infancy, just like any PoW coin while difficulty is low.

PoW coins are secured by hashrate, while PoS ones are secured by stake weight. Either of those needs time to rise high enough.
I haven't seen any research comparing the security of pow and pos/hybrid systems. But it's clear that what really matters is the cost of an identical attack in both networks.
Until this research is conducted, please refrain from blindly comparing security of different systems.