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Following what you do online (and sometimes offline).

Definition

Tracking is collecting data about your behavior—what you click, watch, buy, or where you go—often to profile you.

In plain English Following what you do online (and sometimes offline).

Why this matters

Why it matters: Tracking can reveal sensitive habits and is widely used for ads, pricing, and manipulation.

Example

Example: An app records what pages you read and sells the data to advertisers.