Copilot Surfaces Everything. Including What It Shouldn't.
The Risk
When Copilot is deployed into a tenant with overshared folders and no DLP policies, it becomes the most powerful search engine your employees have ever had. If a user has access, Copilot will find it. CUI, PII, export-controlled data, all of it shows up in everyday prompts.
The Research
Varonis found that 90% of organizations have sensitive files exposed to all employees via Copilot, with an average of 25,000 sensitive folders accessible to anyone who asks the right question. Concentric AI reported Copilot accessed nearly 3 million confidential records per organization in the first half of 2025. This risk prompted 40% of organizations to delay their Copilot rollout by three or more months.
How We Fix It
Copilot-specific DLP policies that inspect prompts and responses, block sensitive content from surfacing, and monitor AI interactions in real time. Organizations implementing Purview DLP achieved a 30% reduction in data breach likelihood and 75% faster security investigations.