What do you think of when you hear the word “identity”? Do you think of usernames and passwords? Do you think of your name or your nickname? How about how you express yourself? Maybe it has something to do with your culture, or family, or a particular group you belong to. Ask 100 people and you will get 100 different answers to the question of “what is identity”? No matter how you answer this question, an identity requires at least one “identifier”, if not more. You can think of an identifier as an anchor or a shortcut to an identity. This could be a name, a user ID, your face, your voice, or many other things. Additionally, groups, objects, and even concepts have identifiers. Identifiers are how we let others know we are referring to one thing and not another.