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If they have the private keys they can go back in time 2yrs ago and match up every transaction on the blockchain by asking major exchanges like mtgox, bitstamp
by dobbsbob 13y ago
If they have the private keys they can go back in time 2yrs ago and match up every transaction on the blockchain by asking major exchanges like mtgox, bitstamp ect for records. I'm sure there's a few who directly pulled out bitcoins to a service that has their identity documents and IP.
The SEC did impressive blockchain forensic work on pirateat40's ponzi scam the DEA/FBI will do the same to round up all the major dealers.
- gwern 13y agoIf. But there was no reason for the withdrawal addresses' keys to still be on file. SR needed to keep the deposit addresses on file, to deal with buyers sending deposits to old deposit addresses, but that doesn't apply to withdrawals through the tumbler.
- dobbsbob 13y agoWe don't know how DPR handled opsec. There could be a file sitting on the server of every withdrawal pasted into his php app since day 1. He kept a record of a lot of things he claimed he didn't (PMs, transactions). The blockchain keeps these transactions forever, so even if they just have the private keys from his wallets they can figure out withdrawals. But I'm betting these guys were caught through plain text messaging in the internal system. Most likely they ordered stuff to themselves from another vendor and didn't bother to use PGP because most criminals are really terrible at being criminals.
- gwern 13y ago> He kept a record of a lot of things he claimed he didn't (PMs, transactions). Did he? We have seen quotes from messages to government agents (which obviously don't require DPR to have saved them), we have quotes from 'cooperating witnesses' (likewise), we have addresses/PMs from within a month or two of the server imaging (consistent with DPR's publicly stated data retention policies)...