CIAOPS Security and Microsoft 365 Advisory

M365 Sign-In and Conditional Access Flow Simulator

Walk through the Microsoft 365 sign-in journey from username entry to password validation, MFA challenge selection, device and location checks, and the point where Conditional Access grants or denies access.

Use and source made available for free. Support these projects via https://ko-fi.com/ciaops.

Context: Security-aware training scenario
Simulation Counters
Total runs: 0 This session: 0
Sign-in posture summary Awaiting selection
Protected controls
    Gaps to watch
      Why this matters: the sign-in path becomes more resilient when password, MFA, endpoint, and location checks align.
      Microsoft recommended controls
      Common Conditional Access patterns grouped by the part of the sign-in flow they influence.
      Identity / MFA
      Device

      Conditional Access helps decide whether a token is issued, but it cannot fully stop a bearer token that was already stolen from being replayed elsewhere; token protection narrows that gap by binding tokens to the client/device where the platform supports it.

      Session
      Guest / Admin
      ASD Essential Eight mappings
      ASD Blueprint controls grouped by policy family and implementation intent.
      ADM
      DEV
      GST
      LOC
      USR

      What-If Parameters

      Use these inputs to override scenario assumptions similar to Conditional Access What-If inputs.

      Override diff
      No overrides active.
      MFA assurance legend
      Phishing-resistantFIDO2 security key, Windows Hello for Business
      Lower assuranceSMS, voice call, email OTP, and push without number matching
      Guest-friendlyEmail OTP, Authenticator push or number matching, SMS
      Learning Coach Waiting
      Run the simulation in learning mode to step through each sign-in stage.
      Why this matters: strong sign-in controls reduce account takeovers and phishing success.
      Allowed / strong guardrail Warning / challenge / step-up Blocked / denied

      Selected Sign-In Outcome

      Best-Practice Comparison

      Attack Outcome Story Awaiting run
      Run a scenario to see how the user journey could end in compromise or safe access.
      This section translates the sign-in logic into plain-language business impact.
      Security Control Gaps Awaiting run
      Run a scenario to identify what controls are missing or misaligned.
      Confidence and Uncertainty Awaiting run
      Run a scenario to understand where sign-in outcomes are judged by policy confidence rather than certainty.
      Validation Lab Not run
      Run a full matrix validation across profiles, scenarios, clients, and custom configuration combinations.
      Covers preset matrices plus an exhaustive custom-control combination sweep.
      Official Microsoft References
      Use these official Microsoft Learn pages for the policy concepts behind this simulator.