![]() ![]() At 02:45, the user returns from their break and unlocks the device.The background upload continues to SharePoint Online. At 00:10, the user gets up and takes a break locking their device.At 00:00, a user signs in to their Windows 10 Azure AD joined device and starts to upload a document to SharePoint Online.At 01:00, the user is prompted to sign in again based on the sign-in frequency requirement in the Conditional Access policy configured by their administrator.Įxample 2: when pausing work with a background task running in the browser, then interacting again after the SIF policy time has passed.The user continues working on the same document on their device for an hour.At 00:00, a user signs in to their Windows 10 Azure AD joined device and starts work on a document stored on SharePoint Online.In the following examples, assume SIF policy is set to 1 hour and PRT is refreshed at 00:00.Įxample 1: when you continue to work on the same doc in SPO for an hour The case when it is the same is when a PRT has expired and a user log-in refreshes it for 4 hours. Note: The timestamp captured from user log-in is not necessarily the same as the last recorded timestamp of PRT refresh because of the 4-hour refresh cycle. However, the Azure AD WAM plugin can refresh a PRT during native application authentication using WAM. On Azure AD registered devices, unlock/sign-in would not satisfy the SIF policy because the user is not accessing an Azure AD registered device via an Azure AD account. The last refresh timestamp recorded for PRT compared with the current timestamp must be within the time allotted in SIF policy for PRT to satisfy SIF and grant access to a PRT that has an existing MFA claim. On Azure AD joined and hybrid Azure AD joined devices, unlocking the device, or signing in interactively will only refresh the Primary Refresh Token (PRT) every 4 hours. User sign-in frequency and device identities Based on customer feedback, sign-in frequency will apply for MFA as well. There was no easy way for our customers to re-enforce multifactor authentication (MFA) on those devices. Sign-in frequency previously applied to only to the first factor authentication on devices that were Azure AD joined, Hybrid Azure AD joined, and Azure AD registered. User sign-in frequency and multifactor authentication The sign-in frequency setting works with third-party SAML applications and apps that have implemented OAuth2 or OIDC protocols, as long as they don't drop their own cookies and are redirected back to Azure AD for authentication on regular basis. ![]() Most Microsoft native apps for Windows, Mac, and Mobile including the following web applications comply with the setting. The sign-in frequency setting works with apps that have implemented OAuth2 or OIDC protocols according to the standards. ![]() The Azure AD default configuration comes down to “don’t ask users to provide their credentials if security posture of their sessions hasn't changed”. You can also explicitly revoke users’ sessions using PowerShell. Some examples include (but aren't limited to) a password change, an incompliant device, or account disable. It might sound alarming to not ask for a user to sign back in, in reality any violation of IT policies will revoke the session. Asking users for credentials often seems like a sensible thing to do, but it can backfire: users that are trained to enter their credentials without thinking can unintentionally supply them to a malicious credential prompt. The Azure Active Directory (Azure AD) default configuration for user sign-in frequency is a rolling window of 90 days. Sign-in frequency defines the time period before a user is asked to sign in again when attempting to access a resource. Access to sensitive information from an external networkĬonditional Access controls allow you to create policies that target specific use cases within your organization without affecting all users.īefore diving into details on how to configure the policy, let’s examine the default configuration.Resource access from an unmanaged or shared device.In complex deployments, organizations might have a need to restrict authentication sessions. ![]()
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