When Valid Isn’t Legitimate: 5 Numbers That Define the Microsoft 365 Security Gap

Microsoft 365 provides a strong foundation for email security, identity, and collaboration. But some of the most consequential attacks exploit activity that appears entirely legitimate: a valid sender, an authenticated account, an approved application, or a permitted configuration.

These threats are difficult to identify through conventional filtering because they often contain no known malicious indicators. Recognizing them requires an understanding of normal behavior across communications, identities, applications, and the broader Microsoft 365 environment.

When Valid Isn’t Legitimate: 5 Numbers That Define the Microsoft 365 Security Gap examines the scale of this challenge and how organizations can strengthen Microsoft 365 security with behavioral detection, continuous posture management, and automated response, without adding a secure email gateway or changing mail flow.

Download the report to learn:

• Five numbers that illustrate the scale, cost, and operational impact of threats targeting Microsoft 365
• Why legitimate-looking messages, authenticated identities, and approved applications can evade conventional detection
• How behavioral AI identifies suspicious activity across email, Teams, identities, and applications
• How continuous posture management and automated response help reduce exposure and accelerate resolution

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