Enable Two-Factor Authentication (2FA/MFA) for Microsoft Office 365

---

Office 365 Two-Factor Authentication (2FA) or Multi-Factor Authentication is the process of secure Authentication in which a user or an organizational employee have to provide two factors to gain the access to Office 365 data. Microsoft Office 365 Two-Factor Authentication starts with user submitting his traditional username and password. Once user successfully gets authenticated with the 1st step verification, configured 2FA (OTP over SMS, Push Notifications, Google Authenticator, Microsoft Authenticator etc) method prompts on for 2nd-step verification. After successfully authenticating with both of the steps a user is granted with the access to the Microsoft Office 365 resources. This additional security layer prevents the unauthorized person from accessing the Microsoft 365 resources even if cyber attackers get to know your credentials.

miniorange provides 15+ Multi-Factor Authentication (MFA) methods and security solutions for various use cases. It allows users and organization to configure certain authentication and settings which includes setting up password restrictions, restricting sign-in methods, as well as other security settings. miniorange also makes a way for authentication apps that support Time-Based One-Time Password (TOTP) Google Authenticator, Microsoft Authenticator, Authy 2-Factor authentication app and our own miniorange Authenticator app. Follow the given guide to setup secure Multi-factor Authentication in Office 365 account.

Prerequisites

1. Sync On-Premise Active Directory with Microsoft Entra ID

NOTE: If you want to use your On-Premise Active Directory as a user store to Single Sign-On into Office 365 then follow the below steps to sync your AD and Microsoft Entra ID.

• Download the Microsoft Entra ID Connect
• Run the Microsoft Entra ID installer on your domain machine and follow the setup.

2. Verify your UPN Domain in Azure Portal

Note: If you have set up a custom domain name, skip this step.

• In the Azure portal navigate to Microsoft Entra ID >> Custom domain names and click on Add custom domain.
  
• Enter the full domain name in the right pane that pops up and click on Add domain.



• A new window will open up with TXT/MX records for the domain. You will have to add the resented entry in your domain name registrar.



• Click on verify once you have added the entry

Follow the step-by-step guide given below for Office 365 Single Sign-On (SSO)

1. Configure Office 365 in miniOrange

• Login into miniOrange Admin Console.
• Go to Apps and click on Add Application button.



• In Choose Application Type, select SAML/WS-FED from the All Apps dropdown.



• In the next step, search for Office 365. Click on Office 365 app.



• In the Basic settings section, enter the Display Name.
• Make sure the SP Entity ID or Issuer is: urn:federation:MicrosoftOnline
• Make sure the ACS URL is: https://login.microsoftonline.com/login.srf



• Click Next.
• Now, go to the Attributes tab, and configure Name ID based on the User Store you are using:
  • Using Active Directory / miniOrange brokering service: Select External IDP Attribute from the dropdown and add objectguid in the text-box that appears.
  
  
  
  • Using miniOrange as a User Store: Select Custom Profile Attribute and select a Custom Attribute from the drop-down.
  
  
  
• Click Next to go to the Policies. Save the application first to configure the policy.



• Click the Assign Group button. In the Configure Group Assignment dialog box, select DEFAULT as the group.





• Click Next to go to the Assign Policies section. Select First Factor as Password.
• You can enable 2FA for login or allow users to log in with a standard username and password.



• Click Save.
• Once done, policies will be created for all the selected groups.

2. Configure Microsoft Graph Services

• Now, go to the Metadata tab.
• Click on the Download Federate Domain Script button under "External source as IdP".



• Enter the Domain Name that you want to federate and click on Download.
  Note: You cannot federate your default "onmicrosoft.com" domain. To federate your Office 365 tenant, you must add a custom domain to Office 365.



• After downloading the script, Open PowerShell run the federate_domain script using:
  cd ./Downloads powershell -ExecutionPolicy ByPass -File federate_domain.ps1



• Your domain is now federated. Use the commands below to check your federation settings:
  Get-MgDomain -DomainId "<domain>" | Select-Object Id, AuthenticationType

3. Configure 2FA for Office 365

3.1: Enable 2FA for Users of Office 365 app

• To enable 2FA for Users of Office 365 application. Go to Policies >> App Login Policy
• Click on Edit icon against the application you have configured.



• Check the Enable 2-Factor Authentication (MFA) option.



• Click on Submit.

3.2: Configure 2FA for your Endusers

• To enable 2FA/MFA for endusers, go to 2-Factor Authentication >> 2FA Options For EndUsers.
• Select default Two-Factor authentication method for end users. Also, you can select particular 2FA methods, which you want to show on the end users dashboard.
• Once Done with the settings, click on Save to configure your 2FA settings.

3.3: Enduser 2FA Setup

• Login to End-User Dashboard using end user login URL.
• For Cloud Version: The login URL (branding url) which you have set.
• For On-Premise version: The login URL will be the same as of Admin Login URL.
• Select Setup 2FA from left panel. Then select any of the 2FA method available.
• For now, we have selected the SMS >> OTP OVER SMS as our 2FA method. You can explore the guide to setup other 2FA methods here.
• Enable the OTP over SMS if you have your phone number added under your account information else click on Edit >> Click here to update your phone number link.



• In Account Information, click on edit icon.



• Select your country code, enter your mobile number, and click Send OTP.



• Enter the OTP sent to your phone and click Validate.



• After adding your phone number, turn on the toggle to activate OTP over SMS.



• Now Enable 2 Factor Authentication toggle if not done before as shown below.

4. Now sign in to your Microsoft Office 365 account with miniOrange IdP by either of the two steps:

1. Using SP initiated login :-

1. Go to Office 365 Login and click on sign-in.
2. You will be redirected to Microsoft Graph portal. Here you have to enter the UPN of the user.(It should contain the domain that is federated with miniOrange)
3. Now you will be redirected to miniOrange IdP Sign On Page.




4. Enter your login credential and click on Login.
5. Since we have Multifactor/Two-factor authentication (MFA/2FA) enabled, you will be prompted to register for it. It's a one time process.
6. Configure your basic details.



7. Configure any authentication method of your choice.



8. After successful registration, you will be logged in to your Office 365 account.
9. Now we have Two-factor authentication enabled.
10. To verify your Two-factor authentication(2FA) configuration, go to your Office 365 Domain. You will be redirected to miniOrange login console.



11. Enter your login credentials, and click on login. It will prompt to verify yourself against the configured Multifactor Authentication (mfa/2fa) method.
    e.g. If you have configured OTP over SMS, after login into Office 365 it will prompt for OTP.



12. Enter the OTP received in your phone, after successful 2FA verification, you will be redirected to the Office 365 dashboard.

2. Using IdP initiated login :-

1. Login to your miniOrange Self Service Console as an End User and click on the Office 365 icon on your Dashboard.
2. Once you click on Office 365 you don't need to enter credentials again you will be redirected to Office 365 account.

5. Configure Your User Directory (Optional)

miniOrange provides user authentication from various external sources, which can be Directories (like ADFS, Microsoft Active Directory, Microsoft Entra ID, OpenLDAP, Google, AWS Cognito etc), Identity Providers (like Okta, Shibboleth, Ping, OneLogin, KeyCloak), Databases (like MySQL, Maria DB, PostgreSQL) and many more. You can configure your existing directory/user store or add users in miniOrange.

• Setup miniOrange as IDP
• Setup AD as User Directory
• Setup External IDP

• To add your users in miniOrange there are 2 ways:
• Create User in miniOrange
• Bulk Upload Users

1. Create User in miniOrange

• Click on Users >> User List >> Add User.



• Here, fill the user details without the password and then click on the Create User button.



• After successful user creation a notification message "An end user is added successfully" will be displayed at the top of the dashboard.



• Click on Onboarding Status tab. Check the email, with the registered e-mail id and select action Send Activation Mail with Password Reset Link from Select Action dropdown list and then click on Apply button.



• Now, Open your email id. Open the mail you get from miniOrange and then click on the link to set your account password.
• On the next screen, enter the password and confirm password and then click on the Single Sign-On (SSO) reset password button.



• Now, you can log in into miniOrange account by entering your credentials.

2. Bulk Upload Users in miniOrange via Uploading CSV File.

• Navigate to Users >> User List. Click on Add User button.



• In Bulk User Registration Download sample csv format from our console and edit this csv file according to the instructions.



• To bulk upload users, choose the file make sure it is in comma separated .csv file format then click on Upload.



• After uploading the csv file successfully, you will see a success message with a link.
• Click on that link you will see list of users to send activation mail. Select users to send activation mail and click on Send Activation Mail. An activation mail will be sent to the selected users.

• Click on Identity Providers >> Add Identity Provider in the left menu of the dashboard



• In Choose Identity Provider, select AD/LDAP Directories from the dropdown.



• Then search for AD/LDAP and click it.



• STORE LDAP CONFIGURATION IN MINIORANGE: Choose this option if you want to keep your configuration in miniOrange. If the active directory is behind a firewall, you will need to open the firewall to allow incoming requests to your AD.
• STORE LDAP CONFIGURATION ON PREMISE: Choose this option if you want to keep your configuration in your premise and only allow access to AD inside premises. You will have to download and install miniOrange gateway on your premise.




• Enter AD/LDAP Display Name and Identifier name.
• Select Directory Type as Active Directory.
• Enter the LDAP Server URL or IP Address against the LDAP Server URL field.
• Click on the Test Connection button to verify if you have made a successful connection with your LDAP server.



• In Active Directory, go to the properties of user containers/OU's and search for the Distinguished Name attribute. The bind account should have minimum required read privileges in Active Directory to allow directory lookups. If the use case involves provisioning (such as creating, updating, or deleting users or groups), the account must also be granted appropriate write permissions.



• Enter the valid Bind account Password.
• Click on the Test Bind Account Credentials button to verify your LDAP Bind credentials for LDAP connection.



• Search Base is the location in the directory where the search for a user begins. You will get this from the same place you got your Distinguished name.



• Select a suitable Search filter from the drop-down menu. If you use User in Single Group Filter or User in Multiple Group Filter, replace the <group-dn> in the search filter with the distinguished name of the group in which your users are present. To use custom Search Filter select "Write your Custom Filter" option and customize it accordingly.



• Click on the Next button, or go to the Login Options tab.
• You can also configure following options while setting up AD. Enable Activate LDAP in order to authenticate users from AD/LDAP. Click on the Next button to add user store.




Here's the list of the attributes and what it does when we enable it. You can enable/disable accordingly.

Attribute	Description
Activate LDAP	All user authentications will be done with LDAP credentials if you Activate it
Fallback Authentication	If LDAP credentials fail then user will be authenticated through miniOrange
Enable administrator login	On enabling this, your miniOrange Administrator login authenticates using your LDAP server
Show IdP to users	If you enable this option, this IdP will be visible to users
Sync users in miniOrange	Users will be created in miniOrange after authentication with LDAP



• Click on the Next button, or go to the Attributes tab.

Attributes Mapping from AD

• By default userName, firstName, lastName, email are configured. Scroll down and click on Save button. To fetch additional attributes from Active Directory, enable Send Configured Attributes. On the left side, enter the name that you wish to release to the applications. On the right side, enter the attribute name from Active Directory. E.g., if you wish to fetch company attribute from Active Directory, and send it as organization to configured applications, enter the following:

  Attribute Name sent to SP = organization
  Attribute Name from IDP = company






• Click on the Next button, or go to the Provisioning tab.

User Import and Provisioning from AD

• If you want to set up provisioning, click here for detailed information. We will skip this step for now.

Import Password Policy from AD

• If you want to import your Active Directory password policy into miniOrange, click here for detailed information. We will skip this step for now.

Test Connections

• You will see a list of directories under Identity Providers. From the dropdown, select AD/LDAP Directories, search for your configured directory, click the three dots next to it, and select Test Connection.



• A pop-up appears prompting you to enter a username and password to verify your LDAP configuration.



• On Successful connection with LDAP Server, a success message is shown.

Test Attribute Mapping

• You will see a list of directories under Identity Providers. From the dropdown, select AD/LDAP Directories, search for your configured directory, click the three dots next to it, and select Test Attribute Mapping.



• A pop‑up appears to enter a username and click Test.



• The Test Attribute Mapping Result will be displayed.

Set up AD as External Directory configuration is complete.

Note: Refer our guide to setup LDAP on windows server.

miniOrange integrates with various external user sources such as directories, identity providers, and etc.

• Okta
• ADFS
• Ping
• AWS Cognito
• Many more

Not able to find your IdP or Need help setting it up?

Contact us or email us at idpsupport@xecurify.com and we'll help you setting it up in no time.

6. Adaptive Authentication with Office 365

Adaptive Authentication for Office 365 enables administrators to enforce context-aware access policies by evaluating user login conditions such as IP address, device, location and login time. Based on the configured policy, users can be allowed access, challenged with additional verification or denied access. Administrators can also configure email alerts, customize user-facing error messages, review policy settings before deployment and assign adaptive authentication policies to application login policies to strengthen security and prevent unauthorized access.

[Note: The Adaptive Authentication section has been moved from the left navigation menu. You can now access and manage adaptive authentication policies by navigating to Policies >> Adaptive Access Policy.]

A. Restricting access to Office 365 with IP Based Access Restriction

IP Based Access Restriction allows administrators to control user access based on the source IP address of the login request. Administrators can configure trusted or restricted IP addresses and IP ranges and define the action to be taken when a user's IP address matches the configured criteria. During authentication, the user's IP address is evaluated against the configured policy and access is either Allowed, Denied or Challenged based on the selected configuration.

You can configure Adaptive Authentication with IP Based Restriction in following way :

• Login to Self Service Console >> Policies >> Adaptive Access Policy section from the left side menu.



• Click on the Create Policy button on the upper right. Add a suitable policy name and click on Create Policy.



• Expand the IP Based Access Restriction section by clicking on the dropdown icon to configure IP-based access rules.



• Click Add IP Range to configure IP addresses or IP ranges for the policy.



• Specify the IP Address that you want to whitelist. For the IP Range other than the whitelisted one, you can select the above setting to reflect.
• Choose either Allow or Deny by selecting the corresponding option from the dropdown. If a user tries to login with the whitelisted IP address, they will always be allowed access.
• We support IP address range in three formats i.e., IPv4, IPv4 CIDR and IPv6 CIDR. You can choose whichever is suitable for you from the dropdown menu.
• You can add multiple IPs or IP ranges by clicking the + Add IP Range button.



• Once the changes are made, click on Next.
• Select Action for Behavior Change, choose the appropriate Action and Challenge Type for the user from that section.




Action for behavior Change Options :




Attribute	Description
Allow	Allow users to authenticate and use services if Adaptive authentication condition is true.
Deny	Deny user authentications and access to services if Adaptive authentication condition is true.
Challenge	Challenge users with one of the three methods mentioned below for verifying user authenticity.




Challenge Type Options:




Attribute	Description
User second Factor	The User needs to authenticate using the second factor he has opted or assigned for such as OTP over SMS PUSH Notification OTP over Email and many more.
KBA (Knowledge-based authentication)	The System will ask the user for 2 of 3 questions he has configured in his Self-Service Console. Only after the right answer to both questions is the user allowed to proceed further.
OTP over Alternate Email	User will receive an OTP on the alternate email they have configured through the Self Service Console. Once the user provides the correct OTP, they are allowed to proceed further.



• Click on Next to continue.

B. Restricting access to Office 365 with Device Based Access Restriction

Device Based Access Restriction allows administrators to control user access based on trusted and registered devices. By leveraging device identification and verification mechanisms, administrators can define policies that evaluate the device used during authentication. When a user attempts to log in, the device is assessed against the configured policy and the appropriate action: Allow, Challenge or Deny is applied based on the configured conditions.

You can configure Adaptive Authentication with Device Based Restriction in following way :

• Login to Self Service Console >> Policies >> Adaptive Access Policy section from the left side menu.



• Click on the Create Policy button on the upper right. Add a suitable policy name and click on Create Policy.



• Click on the Dropdown option to expand the Device Based Access Restriction section to configure device-based access controls.



• Turn on the Enable Device Configuration toggle.



• Configure either Agentless Device Restriction or Agent-Based Device Restriction based on your organization's requirements.
• Agentless Device Restriction: Verifies and manages trusted devices without requiring any software or agent installation on the endpoint. It uses browser and device-based identification methods to evaluate device trust and enforce access policies during authentication.
• Agent-Based Device Restriction: Provides enhanced device trust verification by using a lightweight agent installed on managed devices. It enables advanced device validation and risk-based access control to ensure that only trusted devices can access protected resources.



• Click here to get more information about Device Based Restriction.
• Once the changes are made, click on Next.
• Under Action for Behaviour Change, select the appropriate action and challenge type for the policy.



• Click on Next to continue.

C. Restricting access to Office 365 with Location Based Access Restriction

In location restrictions, admin configures a list of locations where they want to allow end-users to either login or deny based on the condition set by the admin. When a user tries to login with adaptive authentication enabled, their Location Attributes, such as (Latitude, Longitude and Country Code) are verified against the Location list configured by the admin. Based on this user will be either allowed, challenged or denied.

You can configure Adaptive Authentication with Location Based Restriction in following way :

• Login to Self Service Console >> Policies >> Adaptive Access Policy section from the left side menu.



• Click on the Create Policy button on the upper right. Add a suitable policy name and click on Create Policy.



• Click on the Dropdown to expand the Location Based Access Restriction section to configure location-based access rules.



• Select Register Location if User Completes Challenge to automatically register a user's location after successful challenge verification.
• Click on Add Location.



• In the Search Location field, enter the location name and select the appropriate location from the search results.
• Specify the radius around the selected location and choose the distance unit (KM or Miles). This will be the total area in and around the location we have configured using the Latitude and Longitude points.
• For each configured location, select whether access should be Allowed or Denied.



• You can click on the Add Location button to add more than one location and then follow steps 2-4 as mentioned above.
• Once the changes are made, click on Next.
• Select your Action for behavior Change and Challenge Type for user from the Action for behavior Change Section.



• Click on Next to continue.

D. Restricting access to Office 365 with Time Based Access Restriction

In time restriction, admin configures a time zone with Start and End Times for that timezone and users are either allowed, denied or challenged based on the condition in the policy. When an end-user tries to login with the adaptive authentication enabled, their time zone-related attributes such as Time-Zone and Current System Time, are verified against the list configured by the admin and based on the configuration, the user is either allowed, denied or challenged.

You can configure Adaptive Authentication with Time Based Restriction in following way :

• Login to Self Service Console >> Policies >> Adaptive Access Policy section from the left side menu.



• Click on the Create Policy button on the upper right. Add a suitable policy name and click on Create Policy.



• Expand the Time Based Access Restriction section by clicking on the dropdown icon to Time Based Access Restriction rules.



• Enter the Login Window Buffer Time (Minutes) to allow a grace period before the start time and after the end time of the configured login window. If no value is specified, the default buffer time of 0 minutes is applied.
• Click Add Time to create a time-based access rule.



• Select the required Timezone, configure the Start Time and End Time and choose the applicable days.
• For each time-based rule, select whether access should be Allowed or Denied.



• Click on the Add Time to add more than one timezones.
• Once the changes are made, click on Next.
• Select your Action for behavior Change and Challenge Type for user from the Action for behavior Change Section.



• Click on Next to continue.

E. Email Alerts and Custom Email Message

This section handles the notifications and alerts related to Adaptive Access Policy. It provides the following options:

• Send email alerts: Configure the recipients who should receive email notifications when adaptive authentication events occur. Alerts can be sent to administrators, end users or both, depending on your monitoring and security requirements.
• Send email alerts to administrators: Enable this option to notify administrators when configured adaptive authentication events are triggered. You can optionally specify an email address under Administrator's e-mail address to receive alerts to receive alerts; otherwise, alerts are sent to the default administrator account.



• Send email alerts to end users: Enable this option to notify end users when adaptive authentication events affect their login attempts or device registrations.
• Number of Device Registrations Exceeded Allowed Count: When enabled, end users receive an email notification if they attempt to register more devices than the maximum number allowed by the configured device restriction policy. (Available only for end-user notifications.)



• Get email alerts if users login from unknown devices or locations: Admins need to enable this option to enable receiving alerts for different alert options.



Option	Description
Users login from unknown IP addresses, devices or locations	Enabling this option allows you to login from unknown IP addresses or devices and even locations.
Challenge Completed and Device Registered	Enabling this option allows you to send an email alert when an end-user completes a challenge and registers a device.
Challenge Completed but Device Not Registered	Enabling this option allows you to send an email alert when an end-user completes a challenge but do not registers the device.
Challenge Failed	Enabling this option allows you to send an email alert when an end-user fails to complete the challenge.





• In case you want multiple admin accounts to receive alerts, then you can enable the option for admin and then enter the admin emails separated by a ',' in the input field next to Administrator's email to receive alerts label. To enable alerts for the end users, you can enable the End User checkbox.
• In case you want to customize the deny message that the end user receives in case his authentication is denied due to adaptive policy, you can do this by entering the message inside Deny Message text box.

F. Review

Review the configured policy conditions, behavior change actions, email alert settings and custom error messages before creating the adaptive authentication policy. This step provides a consolidated view of all configured settings, allowing you to verify the policy configuration and make any necessary changes before saving.




• Click on Create Policy.

G. Add Adaptive Authentication policy to Office 365

• Login to Self Service Console >> Policies >> App Login Policy.
• Click on Edit icon option for predefined app policy.



• Set your policy in the Policy Name and select Password as First Factor.



• Enable Adaptive Authentication on Edit Login Policy page and select the required restriction method as an option.
• From Select Login Policy dropdown select the policy we created in last step.
• Apply Restrictions Using: Configure how multiple adaptive authentication restrictions should be evaluated during user login.
  • AND: All enabled restrictions must be successfully satisfied for the login attempt to be allowed.
  • OR: At least one enabled restriction must be successfully satisfied for the login attempt to be allowed.



• Adaptive Authentication Restrictions: Configure additional login restrictions and verification conditions to strengthen account security and control user access based on contextual risk factors.
  • IP Restriction: Restrict login access to specific IP addresses or IP ranges for enhanced security.
  • Device Restriction: Allow login access only from trusted or pre-authorized devices.
  • Location Restriction: Control user login access based on geographic location.
  • Time Restriction: Restrict user login access to specific days or time periods.
  • Force MFA On Each Login Attempt: Require users to complete MFA verification during every login attempt regardless of device or session state.

How to add a trusted Device

• When End-user log in to the self service console after the policy for device restriction is on, he is provided the option to add the current device as a trusted device.

External References

• What is Multi-Factor Authentication (MFA) and how does it work?
  
• Get more info around Office 365 Multi-Factor Authentication (MFA) security
  
• Configure Office 365 IP Restriction
  
• Office 365 setup with on-premises environments
  
• Looking for SSO and 2FA solutions around other Office 365 Applications (PowerBI, Sharepoint, Outlook etc)
  
• 2-Factor Authentication for Outlook