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Secure Aggregation

Privacy

Encryption Differential Privacy Federated Learning Secure Multi‑Party Computation

Combining data so the server sees only the total, not individual inputs.

Definition

Secure aggregation is a method where many people contribute data, but the server can only see the combined result.

In plain English Combining data so the server sees only the total, not individual inputs.

Why this matters

Why it matters: It helps collect useful statistics without exposing each person’s data.

Example

Example: An app learns how often a feature is used without seeing who used it.