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Traffic Correlation
Network Privacy
Linking communication endpoints by correlating traffic features across observation points.
Definition
Traffic correlation analyzes packet timing, volume, and direction at multiple points to infer relationships between sender and receiver, even under encryption.
In plain English
Linking communication endpoints by correlating traffic features across observation points.
Why this matters
Why it matters: It targets metadata, which can be highly revealing despite secure content.
Example
Example: Correlating entry and exit traffic to reduce anonymity in an anonymizing network.