Introduction

It’s never a good idea to use the word “modern” in the title of a book.

Growing up, one of the centerpieces of my family’s bookshelf was a 15-tomes-strong encyclopedia titled Nuovissima Enciclopedia (Very new encyclopedia), and I always had a hard time reconciling the title with the fact that it was 10 years older than me.

I guarantee that the content in this book will get old faster than those old volumes—cloud and development technologies evolve at a crazy pace—and yet I could not resist referring to the main subject of the book as “modern authentication.”

The practices and technologies used to take care of authentication in business solutions have changed radically nearly overnight, by a perfect storm of companies moving their ...

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