To stay ahead of regulators, money launderers frequently alter the complex chains of transactions, banks, and front companies they use to get the money out of Russia and into the global financial system. (bloomberg.com)
But by looking at chains of transactions in the public blockchain, it's possible to identify transaction patterns, and with enough effort, often the real - world owner of a specific address. (digitalcurrencycouncil.com)
Each such computer contains the whole chain of transactions, so it is not feasible for a would - be fraudster to alter all of them. (slaw.ca)