Vuvuzela.io

Vuvuzela.io is a private messaging system designed to obscure metadata by adding “noise” to the message transmission system. As The Verge summarized it,

Thirdly, and most importantly, the system generates a ton of dummy messages. Even when users are not talking to one another, false messages are being sent on their behalf, making it difficult to track the real metadata among all the noise.

Clever.

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