Conditional Access

Nathan McNulty
Sign-in Frequency - How It Works and When to Use It
Sign-in Frequency (SIF) is a commonly misunderstood control, one many orgs use to inflict unnecessary suffering on their employees 😩 It probably doesn’t work the way you think it does and is often used in less than ideal ways… So let’s look at how it works and when to use it. Original documentation excerpt introducing sign-in frequency and the risks of repeatedly asking users for credentials. Historical November 2025 documentation screenshot. Its broad session-revocation wording must not be treated as a guarantee for every application; use current, qualified guidance.
Nathan McNulty
Nathan McNulty
Nathan McNulty
Common misunderstandings of Conditional Access
Check how authentication and policy requirements combine before treating a blocked sign-in as resolved.
Nathan McNulty
Block unknown and unsupported platforms
Block unknown client platform claims with a carefully tested Conditional Access policy.