In the real world, communication is an illusion. People talk, but they are not often heard or understood. In the digital world, we face a different type of illusion. Dialogue occurs between users and systems, or nothing else happens. The single biggest problem in digital communication is not that it has taken place, but rather that it has taken place with the right person.
Consider the most common digital communication today—authentication. Users request access and are then challenged to present login credentials. This digital dialogue occurs millions and millions of times every minute of every day around the globe and it is built on one very simple principle—trust. The application is trusting that the legitimate owner is submitting these credentials. But this trust is easily compromised, as passwords can be easily stolen, guessed or given away.