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Hidden Entry Points: How Microsoft 365 Misconfigurations Create Vulnerabilities

Learn how Microsoft 365 misconfigurations like legacy authentication and OAuth abuse are exploited in real attacks, and how to identify and remediate hidden risk.

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Attackers exploit M365 misconfigurations—legacy authentication, OAuth apps, access controls—to bypass MFA and gain persistent, undetected access.

Microsoft 365's hundreds of settings across Entra, Teams, and Exchange make security blind spots easy to overlook.

Legacy authentication protocols and OAuth abuse are active vectors for circumventing modern identity protections in M365.

Real-world attacks have exploited Teams and Entra misconfigurations in the wild, not just theoretical threat scenarios.

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Microsoft 365 is powerful, but complex. With hundreds of configuration settings across Entra, Teams, Exchange, and other platforms, security blind spots are easy to overlook.

Attackers are actively exploiting misconfigurations like legacy authentication, overly permissive OAuth apps, and misconfigured access controls to bypass MFA, gain persistent access, and remain undetected.

In this ThreatStream webinar, Abnormal experts break down real-world misconfiguration attacks and show how to identify and remediate hidden risk across Microsoft 365.

Watch The On-Demand Webinar To Learn:

  • Why Microsoft 365 misconfigurations are a common entry point for attackers

  • How legacy authentication and OAuth abuse bypass modern protections

  • Real examples of Teams and Entra misconfigurations exploited in the wild

  • How Abnormal's Security Posture Management identifies blind spots and prioritizes remediation

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