https://blockchaining.org/tags/illicit-finance/ Recent content in Illicit Finance on Blockchaining.org Hugo en-us Tue, 21 Apr 2026 00:00:00 +0000 https://blockchaining.org/2026/04/21/mixers-privacy-and-the-limits-of-pseudonymity-in-defi/ Tue, 21 Apr 2026 00:00:00 +0000 https://blockchaining.org/2026/04/21/mixers-privacy-and-the-limits-of-pseudonymity-in-defi/ <p>Every transaction on a public blockchain is permanently recorded and visible to anyone. Wallet addresses are pseudonymous — they are strings of alphanumeric characters with no obligatory link to a real identity — but pseudonymity is not anonymity. Governments and blockchain analytics firms have developed increasingly sophisticated methods for tracing transaction chains and linking addresses to individuals. Mixers exist to complicate that process.</p> <p>A mixer is an application that breaks the chain of custody between a sender&rsquo;s wallet and a recipient&rsquo;s. In a basic smart-contract-based mixer, a user deposits funds from one address into a contract pool, then withdraws the same amount to a different address. The connection between deposit and withdrawal is obscured — the output wallet has no traceable relationship to the input wallet. To improve effectiveness, mixers typically require deposits in standardized denominations and depend on a sufficient number of concurrent users to create a large enough pool that individual transactions cannot be easily disentangled.</p>