"Crypto mixers" exist because of a peculiar feature of cryptocurrencies—most are fully traceable using their public blockchain ledgers. To provide more privacy to crypto account owners, a mixer will let people toss their crypto into a large pool, where it is "mixed" with other people's crypto. At a later date, each crypto owner can choose to withdraw their money from the pool into a new, anonymous wallet, thus making the movement of the crypto harder to track.

Of course, the obfuscation doesn't work well if the blockchain shows 1,231.7 BTC entering a mixer and 1,231.7 BTC being withdrawn to a new wallet. So mixers will take steps to disguise the transactions. Tornado Cash, which operated on the Ethereum blockchain, mandated that users could only deposit money into its pools in 0.1, 1, 10,

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