Introducing Azure AD B2C

Azure AD B2C provides a business-to-customer Identity as a Service in Azure. It mainly focuses on customer-facing websites and applications. It also offers functionality for customers to use their preferred accounts, such as local accounts, social accounts, and enterprise accounts. These accounts can then be used to acquire single sign-on access to your custom applications, websites, or APIs.

Both Azure AD and Azure AD B2C are specifically designed to scale. Both are capable of handling millions of users and billions of authentications per day. This scaling is completely handled by Azure, as well as the safety of the platform and monitoring. It also offers built-in support for protecting against brute-force attacks, handling threats such as Denial-of-Service (DoS), and password spray.

Azure AD B2C is a completely separate service designed for a different purpose than Azure AD. It is aimed at developers and IT administrators who want to leverage a safe...