Your Data, Your Choices: Understanding Microsoft's Privacy Commitments

Today, we celebrate National Data Privacy Day. At Microsoft, privacy is more than a legal requirement, it's a foundation for customer trust and a core part of how products and services are built. As digital life expands and technologies like artificial intelligence play a bigger role in everyday tasks, we continue to invest deeply in privacy, transparency, and responsible innovation.

Privacy Principles at Microsoft

For Microsoft, privacy is a fundamental human right, and this principle guides how we design and operate our products. The Microsoft Privacy Principles, outlined in the Microsoft Trust Center, emphasize that:

• You control your data. You can access, delete, or move your data at any time.
• Microsoft won't use your data for advertising or unrelated purposes without consent.

These commitments are reinforced through privacy-by-design engineering practices, independent audits, and strong internal governance.

Microsoft 365 Copilot: Privacy and Security

With the rise of AI, including Microsoft 365 Copilot, customers want to know how their data is being used and protected. Here are some key points to know about Microsoft 365 Copilot:

• Your prompts, responses, and data aren't used to train foundation large language models (LLMs), including those used by Microsoft 365 Copilot.
• Your organizational data stays protected within your Microsoft 365 environment.
• Microsoft 365 Copilot is governed by the same identity controls, permissions, compliance standards, and data protections that already secure Microsoft 365.

For more detailed information about data, privacy, and security for Microsoft 365 Copilot, visit:

• Data, Privacy, and Security for Microsoft 365 Copilot
• Security for Microsoft 365 Copilot
• How Microsoft builds privacy and security to work hand-in-hand

Responsible AI Practices

In addition, our Responsible AI practices require transparency and risk mitigation to help keep AI systems behaving safely and ethically. Learn more about:

• Responsible AI at Microsoft
• Transparency Note for Microsoft 365 Copilot

Microsoft 365 Copilot for Consumers

Our privacy principles and our Responsible AI practices also apply to when you're using Microsoft 365 Copilot with your personal software at home. Prompts, responses, and your file contents when using Copilot in Microsoft 365 apps aren't used to train foundation models.

For more information about data and privacy for home users, visit: Copilot in Microsoft 365 apps for home: your data and privacy

Conclusion

National Data Privacy Day gives us an opportunity to spotlight these long-standing commitments and help you, our customers, better understand the choices and protections available to you. By combining strong security, clear privacy practices, and responsible innovation, we continue to build and maintain the trust of the people and organizations who rely on our technologies every day.

Updated Jan 27, 2026

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