Data Minimization and Purpose Limitation

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GDPR emphasizes the principles of data minimization and purpose limitation. Organizations should only collect phone numbers that are necessary for their specific purposes and should not retain this data longer than necessary. For example, if a business collects phone numbers for a marketing campaign, it should not keep that data once the campaign is over unless there is a legitimate reason to do so.
To adhere to these principles, organizations can:
Conduct Data Audits: Regularly review the data they collect to ensure it aligns with their current business nees.
Set Retention Policies: Establish clear data retention policies that specify phone number list how long phone numbers will be kept and the criteria for their deletion.

Rights of Individuals
GDPR grants individuals several rights concerning their personal data, including the right to access, rectify. And erase their information. This means that individuals can request to see what data an organization holds about them, ask for corrections, or demand the deletion of their phone numbers from databases. Organizations must have processes in place to respond to these requests promptly and effectively.

Key rights under GDPR include
Right to Access: Individuals can request access to their personal data and obtain information about how it is being processe.
Right to Rectification: Individuals can request corrections to inaccurate or incomplete data.
Right to Erasure: Also known as the "right to be forgotten," individuals can request the deletion of their personal data under certain circumstances.