How to steal Bitcoins that are protected by weak passphrases
I have spent quite a lot of time (~250h) on this problem as part of my dissertation and found ~18k brainwallets. Most of the 10k brainwallets found by the author have probably been made by another 'researcher' who is actively probing the network to look for thieves. There are many other similar analyses online which have better and more interesting results than this.Edit: I can upload some rather large and confusing transaction network diagrams if anyone wishes to see them.