(Updated) PowerPoint for Mac: “Visualize this slide” skill in Copilot

🚨 The Signal: A new 'Visualize this slide' Copilot skill in PowerPoint for Mac automatically transforms text into visuals using Anthropic and GPT5.5 models. This expands AI-driven content creation, increasing potential for data exposure and prompt injection risks.

The Impact

Mac PowerPoint users with Copilot are affected, increasing the risk of sensitive data exposure via AI processing and prompt injection.

• End users: Increased risk of inadvertently exposing sensitive data to AI models.
• Security team: New vector for prompt injection attacks and data exfiltration.
• Compliance team: Challenges in maintaining data residency and privacy with external AI models.
• IT admins: Limited control over individual Copilot skill availability, increasing shadow AI risk.

The Action

1. Review and reinforce existing Microsoft Purview Data Loss Prevention (DLP) policies for PowerPoint content.
2. Educate users on responsible AI usage, data classification, and avoiding sensitive data in Copilot prompts.
3. Monitor Microsoft 365 audit logs for Copilot activity and unusual data access patterns.
4. Evaluate and update your organization's AI governance framework to include Copilot skill usage and data handling.
5. Confirm Anthropic model is disabled if not approved for tenant use via Microsoft 365 admin center.

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