Conditional Access
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What is Conditional Access?
Conditional Access is Microsoft Entra's policy engine for allowing, blocking or constraining sign-ins according to identity and session risk. This profile connects the concept to KBY's practical engineering guidance.
Policies combine assignments such as users, applications, devices and locations with conditions and grant or session controls. Because policies are evaluated together, exclusions, report-only testing and emergency-access accounts are crucial to avoiding accidental lockout.
Apply context-aware access controls to cloud application sign-ins.
- Enforcing MFA for high-risk sign-ins
- Blocking legacy authentication protocols
- Restricting access by location or device compliance
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4 resources for Conditional Access
Browse by purpose, from definitions and learning through operations, diagnostics and controlled recovery.
Learn and operate with Conditional Access
Ordered as a reader progression -- from core definitions through to operational reference -- using only the content already connected in the technology registry.
Systems Engineering(1)
Learn the architecture, concepts and engineering context.
Graduate Learning(1)
Build practical knowledge and hands-on skills.
Config Traps(2)
Recognise and avoid known failure modes.
- Conditional Access in Report-Only Mode Never Enforces MFAA correctly built Conditional Access policy that is still set to Report-only will log matching sign-ins but never enforce MFA or blocking, giving teams false confidence that privileged accounts are protected. Open
- The Client Apps Toggle That Bypasses Azure MFAWhen a Conditional Access MFA policy scopes Client apps to only Browser and Mobile apps and desktop clients, IMAP, POP3, SMTP AUTH and EAS sign-ins fall outside enforcement entirely. Legacy-protocol authentication succeeds with password alone, no challenge, no risk evaluation, enabling undetected password-spray campaigns against Exchange Online mailboxes. Open