(Updated) PowerPoint for Mac: "Review this presentation" skill in Copilot

🚨 The Signal: Copilot in PowerPoint for Mac now offers a 'Review this presentation' skill, using Anthropic and GPT-5.5 models, to suggest improvements. This increases the potential for sensitive data exposure through AI processing.

The Impact

Users with Copilot access on Mac are affected, facing a risk of inadvertent exposure of sensitive presentation content to AI models.

• End users: Risk of unknowingly processing sensitive data with external AI models.
• Security team: Increased surface area for data leakage and compliance challenges.
• Compliance officers: Need to reassess data handling policies for AI-driven content review.
• IT administrators: No direct control over individual Copilot skills, limiting immediate mitigation.

The Action

1. Review and update your organisation's Acceptable Use Policy to specifically address the use of AI tools like Copilot for sensitive data.
2. Communicate to users the risks associated with using AI for reviewing presentations containing sensitive, classified, or proprietary information.
3. Assess data residency and privacy implications of using Copilot skills that leverage external AI models (Anthropic, GPT-5.5) for your organisation's data.
4. Monitor Microsoft Purview Audit logs for Copilot activities related to PowerPoint to identify potential misuse or policy violations.
5. Evaluate the necessity of restricting Copilot access for users handling highly sensitive information, if existing controls are insufficient.

Domain: Agentic-AI · Impact: high · Workload: M365 Apps