Azure active directory anf B2C

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Azure Active Directory Documentation

Cloud based identity access management service for employees sign in / resource access.

• External resources, such as Microsoft Office 365, the Azure portal, and thousands of other SaaS applications.
• Internal resources, such as apps on your corporate network and intranet, along with any cloud apps developed by your own organization.

Intended for;

1. IT admins, to manage access control for the users in the business. Azure AD supports multi-factor auth, automate user provisioning between environments, as well as tools to protect users credentials.
2. App developers, using single sign-on (SSO) for your app, to allow users to sign in with pre-existing credentials.

Azure BB2C is for customers.

• Securely authenticate customers with their preferred identity provider
  • Provide branded registration and login experiences
• Capture login, preference and conversion data for customers.

Using Azure AD B2C allows your apps to have authentication services, analytics through azure, and CRM (customer relations management) and marketing automation.

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Azure B2C also supports third party auth (Google, Microsoft, Twitter, Facebook) e.t.c. With multi-step authentication. 50,000 users /month is free, $0.03 per successful 2fa