Copilot faithfully follows your broken permissions. It searches everything your users can access—including executive compensation, M&A due diligence, and confidential client folders that were never meant to be company-wide.
In 80% of our mid-market audits, we find broken SharePoint permission inheritance, overshared OneDrive files, and missing sensitivity labels.
When Copilot surfaces salary data or patient records to unauthorized staff, the question the Managing Partner asks is not "Why did Copilot do that?" — it is "Why did we deploy Copilot without a security review?"
A 50-employee financial services firm was preparing an acquisition. Due diligence documents were stored in a restricted SharePoint site. However, the site was connected to a hub site that automatically added "All Employees" as visitors.
When Copilot was deployed, any junior associate could ask about acquisition targets and receive accurate responses citing confidential due diligence documents.
A mid-level employee asked Copilot: "What is the Managing Partner's salary?" Copilot returned the full executive compensation spreadsheet from an HR folder that had been shared with "Everyone except external users" during a migration three years earlier.
Trueline IT's M365 Copilot Security Review audits identity, DLP, oversharing, and Purview labels in 7 days for Ontario professional services businesses.
The Diagnostic Audit
Our proprietary scanning isolates broken SharePoint permission inheritance, OneDrive oversharing, and Entra ID configuration sprawl before Copilot exposes it.
One-Time Remediation
We execute hands-on remediation of all Critical findings. We deploy sensitivity labels, clean up permission inheritance, and restrict Copilot access scope.
Ongoing Governance
M365 environments drift daily. We provide monthly configuration drift detection, quarterly re-audits, and Copilot usage monitoring on a flat-fee retainer.
We eliminate the risk of starting. If our Find the Risk audit does not identify at least two critical exposure vulnerabilities in your current SharePoint or Teams setup, we waive the assessment fee completely. You pay absolutely nothing.
OPC and Law Society rulings make unmanaged ChatGPT use an actionable breach of client privilege. Identify your business's exact liability gaps in 60 seconds.
Continue exploring how we help regulated businesses stay compliant.