What steps should you take if you suspect a compromised user account in Azure AD?

When suspecting a compromised user account in Azure Active Directory (Azure AD), resetting the user's password and enabling multi-factor authentication (MFA) are critical steps to mitigate the risk of unauthorized access. By resetting the password, you effectively terminate the current session and prevent the attacker from further accessing the compromised account. This action ensures that only the legitimate user can regain access through a secure new password.

Additionally, enabling multi-factor authentication is crucial as it adds an extra layer of security. Even if an attacker somehow obtains the new password, they would still need the second form of verification to access the account. This drastically reduces the chances of successful unauthorized access, as MFA requires something the user has (like a mobile phone for a one-time code) in addition to the password.

The other steps, while they may have their merits in specific contexts, do not provide the necessary immediate remediation followed by reinforced security. For instance, disabling the account might temporarily stop any ongoing attacks but doesn't necessarily protect the account in the long term. Deleting the user account and creating a new one could lead to data loss and disrupt continuity if not managed carefully. Monitoring the account for suspicious activity can be useful but does not provide any immediate remediation to an account that has already been compromised.