Re: Cleanup: I'll attack some coins - I owned APEXcoin for 90 blocks
I read it the same way as achimsmile, I think a comma/fullstop/words were missing in your rush 
"Around 20% would be quite a lot, or if I may say, with the current total amount of stake forging. So around 23% of stake would give you a shot at a 51% attack as there is about 45% of the stake forging at the moment."
I think ^ is what you meant. But it read as though only 23% of people were forging.
"Around 20% would be quite a lot, or if I may say, with the current total amount of stake forging. So around 23% of stake would give you a shot at a 51% attack as there is about 45% of the stake forging at the moment."
I think ^ is what you meant. But it read as though only 23% of people were forging.
Isn't this more or less exactly what's expected? You need around half of the total staking power to attack?
When you find the right moment, 51% is not much. Attacker can close the mint lock and wait.
Most POS coins have an indication showing if blocks are ready. You need one single block with a high amount of matured coins.
You can check that in coincontrol, so no additional coding is needed for this hack.
Question: Is this possible?
If the network is able to detect such a superstaking, it can prohibit or shift transactions.
Network could calculate the average difficulty of the last X blocks or since the last checkpoint +-15%. Everything above is not valid and transactions or the confirmation process have to wait till the diff get normalized. The attacker (or the stakeholder) would get his interest, but that's all.
Cheers,
Ray