How the Bitcoins Were Stolen from Mt. Gox [video]
A year ago I was doing a very similar analysis using both the 2011 and 2014 leaked databases. They are publicly available (won&#x27;t post a link, but I&#x27;m sure you can find it). My interest was in the privacy aspects of bitcoin.<p>Besides recovering user wallets using the exact same procedure as mentioned there, it was also possible to connect wallets to user email addresses. It only works for accounts in the 2011 leak, as the latter doesn&#x27;t contain email addresses.<p>So if you were using Mt. Gox at some point, especially before 2012, you should assume your Bitcoin addresses can be linked back to your identity. Assume this includes all your addresses, not just the Mt. Gox one, as it is often possible to link addresses from the same user together.<p>In another experiment, I did a simple clustering on WikiLeak&#x27;s public donation address. There&#x27;s a button there to generate a &#x27;unique anonymous donation address&#x27;. The clustering found about 200 of these supposedly anonymous donation addresses. At this point I had email addresses linked to &#x27;anonymous&#x27; Wikileaks donations — Bitcoin doesn&#x27;t offer privacy.<p>These are just two examples out of a list of discoveries. I decided not to commercialize this work on moral grounds, but other companies do offer &#x27;blockchain intelligence&#x27; services.