In the digital age, companies are constantly seeking ways to increase efficiency and integrate innovative solutions for tackling everyday tasks. Microsoft 365 Copilot, an artificial intelligence (AI)-based assistant tool, is at the forefront of these efforts. However, the implementation of such technologies also raises data privacy concerns, which are of paramount importance to Data Protection Officers, Compliance Managers, and Data Security Officers.

The most important points in brief

• Microsoft 365 Copilot is an AI-powered assistant feature embedded within applications like Word, Excel, PowerPoint, and Outlook.
• The AI is based on the use of large language models and utilizes specific, company-related data for content generation.
• Data protection concerns include topics such as the processing of personal data, user transparency and consent, and the security and isolation of processed data.
• Companies must ensure that the use of Microsoft 365 Copilot does not undermine data protection principles of transparency, purpose limitation, and data minimization.

Background

Microsoft 365 Copilot stands on the cusp of the next evolutionary stage of office work by leveraging Artificial Intelligence (AI) to reimagine interaction with the Microsoft 365 productivity suite—including applications like Word, Excel, PowerPoint, and Outlook. This advanced technology represents not only a quantum leap in workplace efficiency and productivity but also raises important questions in the areas of data privacy and compliance.

At its core, Microsoft 365 Copilot utilizes Large Language Models (LLMs), built on technologies like OpenAI's GPT-4. These models are trained on extensive datasets to understand, summarize, predict, and generate content. The key to Copilot is that it leverages these capabilities to access a user's enterprise-specific data through Microsoft Graph, enabling it to produce contextual, tailored responses and content. This means Copilot doesn't just provide generic answers, but ones specifically geared towards the needs and context of the individual business.

The application areas of Microsoft 365 Copilot are diverse, ranging from automating routine tasks like creating documents and emails to analyzing data in Excel and generating PowerPoint presentations. This enables users to work more efficiently by minimizing time-consuming tasks and enhancing focus on creative and strategic work.

Data privacy concerns when implementing AI tools

The implementation of AI tools like Microsoft 365 Copilot in daily work presents companies with a variety of challenges, particularly concerning data privacy. These technologies, while significantly increasing efficiency and productivity, raise fundamental questions regarding the processing of personal data, compliance with the General Data Protection Regulation (GDPR), and the protection of user privacy.

Microsoft 365 Copilot accesses an extensive data basis, including emails, documents, and chat histories within the Microsoft 365 environment, to provide personalized and context-aware support. This processing of personal data initially raises questions about its lawfulness under Article 6 of the GDPR. Processing must be based on a legal basis, such as the data subject's consent or the necessity for the performance of a contract. Companies must therefore ensure that an appropriate legal basis for the data processing by Copilot exists and is documented.

Another important aspect is the transparency of data processing. The GDPR requires companies to inform data subjects clearly and comprehensibly about how their data is processed. In the case of Microsoft 365 Copilot, this means that users must be fully informed about which of their data is processed by the tool, for what purpose, and on what legal basis. This information must be easily accessible and understandable to meet legal requirements.