Create and manage emergency access accounts
It is important that you prevent being accidentally locked out of your Azure Active Directory (Azure AD) organization because you can't sign in or activate another user's account as an administrator. You can mitigate the impact of accidental lack of administrative access by creating two or more emergency access accounts in your organization.
Emergency access accounts are highly privileged, and they are not assigned to specific individuals. Emergency access accounts are limited to emergency or "break glass"' scenarios where normal administrative accounts can't be used. We recommend that you maintain a goal of restricting emergency account use to only the times when it is absolutely necessary.
This article provides guidelines for managing emergency access accounts in Azure AD.
Why use an emergency access account
An organization might need to use an emergency access account in the following situations:
The user accounts are federated, and federation is currently unavailable because of a cell-network break or an identity-provider outage. For example, if the identity provider host in your environment has gone down, users might be unable to sign in when Azure AD redirects to their identity provider.
The administrators are registered through Azure AD Multi-Factor Authentication, and all their individual devices are unavailable or the service is unavailable. Users might be unable to complete Multi-Factor Authentication to activate a role. For example, a cell network outage is preventing them from answering phone calls or receiving text messages, the only two authentication mechanisms that they registered for their device.
The person with the most recent Global Administrator access has left the organization. Azure AD prevents the last Global Administrator account from being deleted, but it does not prevent the account from being deleted or disabled on-premises. Either situation might make the organization unable to recover the account.
Unforeseen circumstances such as a natural disaster emergency, during which a mobile phone or other networks might be unavailable.
Create emergency access accounts
Create two or more emergency access accounts. These accounts should be cloud-only accounts that use the .onmicrosoft.com domain and that are not federated or synchronized from an on-premises environment.
When configuring these accounts, the following requirements must be met:
The emergency access accounts should not be associated with any individual user in the organization. Make sure that your accounts are not connected with any employee-supplied mobile phones, hardware tokens that travel with individual employees, or other employee-specific credentials. This precaution covers instances where an individual employee is unreachable when the credential is needed. It is important to ensure that any registered devices are kept in a known, secure location that has multiple means of communicating with Azure AD.
The authentication mechanism used for an emergency access account should be distinct from that used by your other administrative accounts, including other emergency access accounts. For example, if your normal administrator sign-in is via on-premises MFA, then Azure AD MFA would be a different mechanism. However if Azure AD MFA is your primary part of authentication for your administrative accounts, then consider a different approach for these, such as using Conditional Access with a third-party MFA provider via Custom controls.
The device or credential must not expire or be in scope of automated cleanup due to lack of use.
You should make the Global Administrator role assignment permanent for your emergency access accounts.
Exclude at least one account from phone-based multi-factor authentication
To reduce the risk of an attack resulting from a compromised password, Azure AD recommends that you require multi-factor authentication for all individual users. This group includes administrators and all others (for example, financial officers) whose compromised account would have a significant impact.
However, at least one of your emergency access accounts should not have the same multi-factor authentication mechanism as your other non-emergency accounts. This includes third-party multi-factor authentication solutions. If you have a Conditional Access policy to require multi-factor authentication for every administrator for Azure AD and other connected software as a service (SaaS) apps, you should exclude emergency access accounts from this requirement, and configure a different mechanism instead. Additionally, you should make sure the accounts do not have a per-user multi-factor authentication policy.
Exclude at least one account from Conditional Access policies
During an emergency, you do not want a policy to potentially block your access to fix an issue. At least one emergency access account should be excluded from all Conditional Access policies.
An additional option for organizations that use AD Domain Services and ADFS or similar identity provider to federate to Azure AD, is to configure an emergency access account whose MFA claim could be supplied by that identity provider. For example, the emergency access account could be backed by a certificate and key pair such as one stored on a smartcard. When that user is authenticated to AD, ADFS can supply a claim to Azure AD indicating that the user has met MFA requirements. Even with this approach, organizations must still have cloud-based emergency access accounts in case federation cannot be established.
Monitor sign-in and audit logs
Organizations should monitor sign-in and audit log activity from the emergency accounts and trigger notifications to other administrators. When you monitor the activity on break glass accounts, you can verify these accounts are only used for testing or actual emergencies. You can use Azure Log Analytics to monitor the sign-in logs and trigger email and SMS alerts to your admins whenever break glass accounts sign in.
Validate accounts regularly
When you train staff members to use emergency access accounts and validate the emergency access accounts, at minimum do the following steps at regular intervals:
Ensure that security-monitoring staff are aware that the account-check activity is ongoing.
Ensure that the emergency break glass process to use these accounts is documented and current.
Ensure that administrators and security officers who might need to perform these steps during an emergency are trained on the process.
Update the account credentials, in particular any passwords, for your emergency access accounts, and then validate that the emergency access accounts can sign-in and perform administrative tasks.
Ensure that users have not registered Multi-Factor Authentication or self-service password reset (SSPR) to any individual user’s device or personal details.
If the accounts are registered for Multi-Factor Authentication to a device, for use during sign-in or role activation, ensure that the device is accessible to all administrators who might need to use it during an emergency. Also verify that the device can communicate through at least two network paths that do not share a common failure mode. For example, the device can communicate to the internet through both a facility's wireless network and a cell provider network.
These steps should be performed at regular intervals and for key changes:
At least every 90 days
When there has been a recent change in IT staff, such as a job change, a departure, or a new hire
When the Azure AD subscriptions in the organization have changed