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The Detection Gap in Microsoft 365: Why AI-Powered Attacks Get Through

Explore how behavioral baselines extend Microsoft 365 email security with added visibility into identity-based attacks that evade traditional indicators.

Microsoft 365 native controls catch the known and the noisy. The attacks that keep getting through carry no malicious link or attachment: a vendor's invoice thread, a colleague's writing style, a conversation already underway. Signature and reputation checks have nothing to flag. Attack volume bypassing Microsoft has climbed 48% in two years, and organizations running native controls alone see more than 3,500 missed attacks per 1,000 mailboxes.

This session breaks down why detection built on rules and content analysis stays blind to identity-based attacks, and how behavioral baselines close that gap without adding a gateway or changing mail flow. We'll walk through real attacks that cleared every native check, then sit down with someone who has lived this firsthand—what their team was missing, how they found out, and what changed once they added a behavioral layer.

Watch the on-demand session to learn:

  • Where Microsoft 365 native detection loses visibility into identity-based attacks
  • How behavioral baselines catch threats that pass every authentication and reputation check
  • What changed for a team that added a behavioral layer on top of native protection

Earn ISC2 CPE (1 credit)

This resource is ISC2 CPE eligible. Submit the credit form to claim your continuing-education credits.

See Abnormal in Action

See how behavioral AI detects the attacks that legacy defenses miss.