Azure Multi-Factor Authentication
Azure Multi-Factor Authentication, also known as MFA or 2FA, protects access to your data and applications, and meets the demand of users for a simple login process. It provides strong authentication through a range of simple verification options (phone call, SMS or mobile app notification and one-time passwords) to allow users to choose their preferred method. It is suitable for both local and cloud environments. It provides enhanced security when accessing Microsoft Online Services, as well as SaaS applications connected to Azure Active Directory, business and remote access applications.
Operation
The security of two-step verification lies in its layered approach. Compromising multiple authentication factors presents a significant challenge to attackers. Even if an attacker succeeds in knowing the user's password, it is useless to him without the additional authentication method. The principle works by imposing at least two of the following authentication methods:
Something you know
usually a password
Something that is particularly relevant to you
biometrics
Something you have
a trusted device that is not easily duplicated, such as a telephone
Azure Multi-Factor Authentication (MFA) helps secure access to data and applications while maintaining ease of management for users. MFA Azure Multi-Factor Authentication provides additional security by requiring a second form of authentication, and provides enhanced authentication through a range of easy-to-use authentication methods.
Authentication method
The Azure AD self-service password reset and multi-factor authentication features may require additional information, called authentication methods or security information, to verify your identity when you use the associated features.
Administrators can define the authentication methods available to users with the multi-factor authentication and self-service password reset features in the policy. Some authentication methods may not be available for all features.
Microsoft billing model
Azure Multi-Factor Authentication is available as a standalone service with per-user and per-authentication billing options, or bundled with Azure Active Directory Premium, Enterprise Mobility Suite and Enterprise Cloud Suite. Azure Multi-Factor Authentication is available through a Microsoft Enterprise Contract, Open Volume Licensing Program, Solution Provider Program cloud and Direct as a user-based annual model. It is also available with a per-authentication, per-user consumption-based model, which is billed per month on the Azure financial commitment.
Per user based on consumption
By authentication according to consumption
Annual model per user
Annual model per user
References
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