Blockchains transactions are public, which makes tracking individuals and the parties they conduct those transactions somewhat straightforward. Mixers take coin

Blockchains transactions are public, which makes tracking individuals and the parties they conduct those transactions somewhat straightforward. Mixers take coins from various wallets, "mix" them through various methods, then transfer them to another wallets. This is meant to obscure the link between the original source of the coins and their ultimate destination. Crypto coin laundries.