Mix networks

Mix networks are privacy-focused systems used to obscure the identities of individuals sending messages. They work by collecting messages from multiple users, then shuffling and reordering them before delivering them to their intended recipients. This process helps prevent eavesdroppers from linking a sender to their message, enhancing anonymity. Essentially, mix networks act like a group of friends passing notes: when notes are mixed up and handed out randomly, it becomes difficult to trace who sent what, providing a layer of security for private communications.