Quote from: abide on May 17, 2012, 12:34 pmQuote from: pine on May 17, 2012, 10:47 amYes, start over. It's just simpler and less error prone than diagnosing & implementing an anonymity fix for your current situation. Send the marked BTC to your favorite charity/clearnet service and consider it a lesson.You see, I assume the following:-> The Silk Road is compromised by the FBI-> All online bitcoin wallet services are really FBI-> All the exchanges are FBI-> All the mixers are FBIYou get the picture... My methods prevent my anonymity being compromised even if all my assumptions are true. --You asked how LE could track you down, the answer to that depends on how precisely you acquired the bitcoins and which stages at which you were using Tor, so maybe explain that in further detail step by step so we can run through the thought experiment.Okay, so the steps I took were: 1) Setup intersango account & transfer funds from my bank account -> intersango -> convert funds to bitcoin (clearnet)2) Setup online wallets at blockchain.info (Tor)3) Transferred bitcoin in varying amounts from intersango -> various different wallets at blockchain.info (clearnet)4) Transferred small amount from one wallet at blockchain.info -> instawallet (Tor)5) Transferred same small amount in 4) -> bitcoinfog (Tor)That's it. Some of the bitcoins are now sat in bitcoinfog. Too risky to withdraw and use elsewhere you think? Other than sending somewhere completely benign, that is. Thanks for taking the time to reply once again.Actually now that I know how you approached acquiring the bitcoins this is fairly satisfactory because you cleanly broke the chain of evidence in steps two and three (it seems that this is where most people are going wrong), it also gives you 1 layer of untraceability once you're through the mixer. However I would prefer it if the exchange did not know your identity in the first place. Don't send the bitcoins you have now (either at bitcoinfog or at the wallets) back to the exchange because you'll have created a loop (they'll be able to infer you used bitcoinfog and the wallets, whereas now there is no direct evidence for that).