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Purpose Limitation
Consent
Privacy principle restricting processing to specified, explicit purposes (and compatible use only).
Definition
Purpose limitation is a privacy principle requiring that personal data be collected for specific, explicit purposes and not further processed in incompatible ways. Secondary use typically requires a new legal basis and transparency.
In plain English
Privacy principle restricting processing to specified, explicit purposes (and compatible use only).
Why this matters
Why it matters: It reduces unexpected profiling and helps users understand and control data use.
Example
Example: If data was collected for account security, reusing it for targeted ads requires separate disclosure and lawful basis.