“Follow the money” has been one of the best ways to track down and capture criminals but cyber criminals are finding new ways to avoid this.
…while Bitcoin users can withhold their identities, they can’t avoid revealing other information that can be useful to investigators. Every Bitcoin transaction is recorded on its blockchain, a publicly accessible record of all transactions made using the currency. Blockchains “provide a really useful source of truth,” says Jonathan Levin, cofounder of Chainalysis, which develops software tools for analyzing blockchain data. Its products can help investigators draw inferences about how people are using the currency.
Companies have popped up to help cops identify suspects who use Bitcoin, and savvy criminals are moving to other currencies.