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How a 27-Year-Old Codebreaker Busted the Myth of Bitcoin’s Anonymity (www.wired.com)

submitted 9 months ago by kalkulat@lemmy.world to c/technology@lemmy.world

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"This is the story of the revelation in late 2013 that Bitcoin was, in fact, the opposite of untraceable—that its blockchain would actually allow researchers, tech companies, and law enforcement to trace and identify users with even more transparency than the existing financial system."

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[–] NightLily@lemmy.basedcount.com 30 points 9 months ago (1 children)

I remember when Bitcoin first came out and one of the selling points of bitcoin was that literally anyone could trace the transfers using the wallet codes and what not no? I don't ever remember there being claims that it was untraceable at least as the selling point to the average consumer. There was even tools in like 2012 for tracking whether stuff internally in bitcoin was stolen or whatever...

"While the taint analysis tool aims at measuring the “correlation” between two addresses, there is another notion of taint in the Bitcoin community which refers to the percentage of bitcoins, that come from a known theft or scam and have been blacklisted by popular exchange markets. For example, in 2012 the bitcoin exchange Mt.Gox froze accounts of customers, who owned bitcoins that could be directly related to such an incident [20]." https://maltemoeser.de/paper/money-laundering.pdf

[–] r00ty@kbin.life 14 points 9 months ago

I think people confuse anonymity (similar to the made up names we use here, or character names in online games, and your wallet ID in a crypto coin) to privacy. Technically, if you receive all your funds in crypto, and you spend all the crypto directly (on goods and services that do not require you to give any PII) without it ever turning to fiat. Then yes, it is anonymous but not private. People can see that wallet hash x received funds from wallet hash y and send some of that to wallet hash z and will be able to confirm that for as long as a copy of the ledger exists somewhere.

Really not sure a codebreaker needed to work this out. Anyone that spent a bit of time understanding how it worked would realise this right away. I have no doubt though, that many people had a total pikachu face when their barely concealed illegal activities were easily discovered.