How to create and manage external identities in Microsoft Entra?
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External identities in Microsoft Entra is a critical component in protecting user identities with risk-based policies. It focuses on detecting and responding to potential threats through user risk and sign-in risk policies. Additional policies, such as Conditional Access and MFA registration, further enhance overall security.
Cross-tenant access settings in B2B (Business-to-Business) collaboration enable organizations to manage how users from external organizations access resources in your tenant. This includes configuring inbound and outbound access settings to define what external users can access in your environment, providing secure collaboration between tenants.
Here’s how it works:
Inbound access: This controls how you allow users (guests) from external Microsoft Entra tenants to access resources in your home tenant. You can choose to apply these settings broadly or to specific users, groups, or applications.
Outbound access: This governs how your internal users can access resources in external Microsoft Entra tenants as guests. Similar to inbound access, you can apply these settings to all users or target specific individuals, groups, or applications.
Microsoft Entra external collaboration settings are essential for managing guest user access securely. These settings allow you to control guest invitations and restrict external users.
Guest User Restrictions: To manage who can invite external users and what they can access, you can implement guest user restrictions. This limits the ability of unauthorized users to invite guests and ensures that external users are properly reviewed. This can be customized to suit your organization’s needs by setting rules that restrict guest user invitations to certain users or groups.
Tenant Allow/Block List Policy: Manage external collaboration by controlling external domains which are to be allowed or blocked from interacting with your organization. Set tenant allow/block list policies to whitelist or blacklist specific domains. This ensures that only trusted external users from approved domains can access your resources.
Set up access review policies to periodically assess user permissions and ensure appropriate access levels. By regularly reviewing access, you can ensure that inactive guest accounts, which could be potential security risks, are removed. This process not only enhances security but also helps optimize license usage by eliminating unnecessary accounts.