Divvi Up, launched in October 2020 by a nonprofit focused on privacy-preserving metrics, enables the private aggregation of sensitive data while ensuring that original measurements are never visible to unauthorized parties. Its applications include telemetry and survey results, with notable deployments by Mozilla and Horizontal for sensitive measurement collection. The service is grounded in the Distributed Aggregation Protocol (DAP), which is currently undergoing standardization at the IETF, and incorporates techniques like Oblivious HTTP and differential privacy to enhance data security.
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