GraphWarden Blog

Insights on Microsoft Graph API security, zero-trust architecture, and enterprise compliance.

Security Series

When Mail.Send Becomes a Systemic Risk

A compromised developer secret. 12,000 phishing emails in 20 minutes, signed from a legitimate firm mailbox. How a governance layer turns a six-figure incident into a three-figure operational event.

GraphWarden TeamApril 20, 2026
Architecture

Zero-Trust Architecture for Microsoft 365 Data Access

Zero-trust principles have reshaped network security. But when it comes to Microsoft 365 data access through Graph API, most organizations still rely on implicit trust. Here is how to close the gap.

GraphWarden TeamApril 3, 2025