Post
Topic
Board Bitcoin Discussion
Re: Bitcoin topic on Quora.com
by
riggasconi
on 23/01/2011, 12:05:29 UTC
Quote
I didn't think of this when I was writing my last post, but doesn't this make it difficult for even someone with ~60% to double spend and make it look good for a whole day? Going all the way back a whole day would take about 5 days if you were writing 6 blocks for every 5. Am I thinking correctly?

The attacker is spending BTCs, and then creating a fake payback from the recipient to himself with his malicious subnet closing blocks faster than the honest subnet, therefore the malicious block chain is regarded by every client as the best one.