I agree with Ittay: when bugs are found, they must be fixed ASAP, expecially when they affect a sensitive sw such as Bitcon; in IT security, every flaw that is exploitable in abstract, is going to be exploited in real, sooner or later, also taking into account the increasing parallel computing power; beware of false sense of security

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2013/11/5 Mike Hearn <mike@plan99.net>
On Tue, Nov 5, 2013 at 6:43 PM, Ittay <ittay.eyal@cornell.edu> wrote:
The attack can be easily hidden. And be sure that before today, today, 
and after today, very smart people are at their computer planning attacks 
on Bitcoin. Exploits must be published and fixed FAST. 

I think it would be helpful if you actually implemented and pulled off this attack, by becoming the dominant miner capable of reversing spends at will. Then we'd know how quickly it can be done.




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