Crypto Mixer
A service or protocol that blends cryptocurrency from many users to make transaction trails harder to trace on a public blockchain.
A crypto mixer, also called a tumbler, is a tool that tries to improve transaction privacy by pooling coins or tokens from multiple users and redistributing them in new amounts or to new addresses. Because many blockchains are public ledgers, anyone can often follow the movement of funds between addresses. A mixer makes that trail less direct by breaking the visible link between the original sending address and the final receiving address.
People may use mixers to reduce unwanted financial surveillance, such as hiding a personal wallet balance after being paid in crypto. For example, it can be compared to putting several people’s banknotes into one box, shaking it, and handing different notes back out. However, mixers can also be used to conceal stolen funds or sanctions evasion, so they are closely watched by regulators and blockchain analytics firms. Using one may carry legal, compliance, or exchange-account risks depending on the jurisdiction and the specific service.
Other terms in Cryptography & Privacy
CoinJoin
A privacy technique that combines multiple users’ cryptocurrency payments into one transaction to make input-output links harder to trace.
Digital Signature
A digital signature is cryptographic proof that a message or transaction was approved by the holder of a specific private key.
Fully Homomorphic Encryption
A cryptographic method that lets data be processed while still encrypted, so only the key holder can reveal the final result.
Hash Function
A hash function turns any input into a fixed-length string of data that is easy to verify but extremely hard to reverse or predict.