The no-code power of Microsoft Copilot Studio introduces a new attack surface. Tenable AI Research demonstrates how a simple prompt injection attack of an AI agent bypasses security controls, leading to data leakage and financial fraud. We provide five best practices to secure your AI agents.
Key takeaways:
- The no-code interface available in Microsoft Copilot Studio allows any employee — not just trained developers — to build powerful AI agents that integrate directly with business systems. This accessibility is a force multiplier for productivity but also for risk.
- The Tenable AI Research team shows how a straightforward prompt injection can be used to manipulate the agent into violating its core instruction, such as disclosing multiple customer records (including credit card information) or allowing someone to book a free vacation, exposing an organization to cyber risk and financial loss.
- The democratization of automation made possible by AI tools like Copilot Studio doesn’t have to be scary. We offer five best practices to help security teams keep employees empowered while protecting sensitive data and company operations.
Microsoft Copilot Studio is transforming how organizations build and automate workflows. With its no-code interface, anyone — not just developers — can build AI-powered agents that integrate with tools like SharePoint, Outlook, and Teams. These agents can handle tasks like processing customer requests, updating records, and authorizing approvals all through natural conversation. Such accessibility brings risk: when any employee can deploy an agent with access to business data and actions, even the most well-meaning users can unintentionally expose sensitive systems if they’re not properly secured.
We decided to test this hypothesis by creating a travel agent helping customers book travel. Sounds harmless, right?
To conduct our tests, we created a mock SharePoint file in our Microsoft Copilot research environment and loaded it with dummy data: fake customer names and made-up credit card details. While the data we used was fake, the results were all too real. With just a few simple prompts, we were able to access customer credit card information and even reduce the cost of a vacation booking to $0. It’s a reminder that even well-intentioned automation can open the door to serious exposure if not carefully controlled.
Meet our new travel agent
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