“Follow the Money” Methodology “Follow the money” methodology allows ﬁnancial investigators to track and analyze fund movement around the cryptocurrency blockchain and expand investigation by tracking associated transactions on the public ledger. In many cases, diverse open-source analytics and blockchain analytics methodologies are used synergistically in an attempt to identify illicit transactions and tag diverse entities. Ultimately, collaboration with exchanges or wallet application vendors is required to discover the identities of illicit transaction makers. Exchanges, such as Binance or Coinbase, are online services that convert cryptocurrencies to or from legacy (also known as “ﬁat”) currencies. Most exchanges also support accounts where cryptocurrencies can be stored on behalf of customers, in the same way as a bank in the ﬁat world.