With the increasing integration of Artificial Intelligence into daily work, many companies are growing concerned about the protection of sensitive data.
Microsoft has now explained in detail how Microsoft 365 Copilot handles corporate information—focusing on transparency, security, and compliance.
Table of Contents:
Corporate Data Under Strict Protection Conditions
Microsoft clarifies: All inputs (prompts) and responses from Copilot are subject to the same security and data protection guidelines as classic Microsoft 365 data. This means that information is just as protected as emails in Exchange or files in SharePoint.
A crucial point: Corporate data is not used for training base models. It serves exclusively to generate relevant responses within the respective context.
Security at the Highest Level
To ensure protection, Microsoft relies on a combination of technical and organizational measures:
- Encryption both at rest and during transmission
- Tenant isolation, which ensures that data remains strictly separated
- Access control that respects existing identities, permissions, and sensitivity labels
- Retention policies that also apply to Copilot content
This allows Copilot to integrate seamlessly into existing Microsoft 365 security architectures.
Compliance and International Standards
Particularly relevant for companies in the DACH region: Copilot supports compliance with central data protection and security standards. These include:
- GDPR compliance for European companies
- EU Data Boundary, which ensures that data can be stored within Europe
- ISO/IEC 27018, an international standard for data protection in the cloud
- HIPAA, provided the implementation is correctly configured
These standards build trust and provide a solid foundation for the use of AI in a corporate environment.
Web Queries via Bing: Separate and Anonymized
A special case is web queries that Copilot executes via the Bing search service. Here, the following applies:
- Queries are anonymized and not used for advertising or training.
- In this context, Microsoft is the data controller and not just the data processor.
- Important: The same HIPAA or EU Data Boundaries do not apply to web queries as they do to corporate data.
Companies should take this into account when using Copilot.
Protection Against AI Risks
Microsoft has also integrated protective mechanisms against typical risks in AI usage:
- Prompt injection (manipulation of inputs)
- Harmful content
- Copyright risks—Microsoft takes responsibility for the legal protection of Copilot outputs
This positions Copilot not only as a productivity tool but also as a secure partner in the digital workplace.
Conclusion
Microsoft 365 Copilot impressively demonstrates that innovation and data protection can go hand in hand. Companies benefit from the advantages of modern AI without having to compromise on the protection of their sensitive data.
For organizations in the DACH region, this means: Copilot is a tool that both increases efficiency and meets high security and compliance requirements.
Source: Data, Privacy, and Security for Microsoft 365 Copilot | Microsoft Learn
