When The Man gets a warrant to monitor your communications, arrests you, takes all of your electronic devices, and then chats with your friends and colleagues,

When The Man gets a warrant to monitor your communications, arrests you, takes all of your electronic devices, and then chats with your friends and colleagues, there is a chance that they might uncover your "hidden" wallet. Or, in the case that The Man gets a copy of the overseas bank's records with your name on it and a long and credible-looking list of transfers from wallets that match the amounts put into the mixer, it is going to look real suspicious. Investigators are smart people with many tools at their disposal.