Data is everywhere today. Data is even more valuable than oil. Think about the phone you have in your hand right now. There are hundreds of applications running on your phone with built-in backup settings to preserve, learn, and monitor your data. You don't even have to think about your personalized data being available to you on every other device you use after you sync everything. You might have even come to expect your data to regularly be available to you no matter where you are or what data format it is in. Many people utilize (and hoard) their stored data for sharing and work purposes every day. However, keeping data persistent, accessible, and most importantly secure, is not a trivial task.
Authentication can be complex to understand. Which provider is the best choice for your organization? Read this comparison of ADFS and Azure AD to find out.