Mixers and Tumblers
definition
Core idea
Mixers (also called tumblers) are online services or protocols that pool cryptocurrency from many users and send it back in different amounts to different addresses. Their primary purpose is to obscure the transaction trail and break the on-chain link between the source and destination of funds.
When to use
Reach for this when you need a precise baseline statement of what a mixer is for a case write-up, a SAR narrative, or when separating a mixing service from other privacy tools.
Example
A user sends Bitcoin to a mixer address, and the service later returns equivalent value (minus fees) to fresh addresses the user controls, with no direct on-chain edge connecting the deposit to the withdrawal.
Related
How Mixers Process Funds, Types of Mixers and Tumblers, Why People Use Mixers and Tumblers