When a user first signs up for your website, they're asked to choose a username and password to identify themselves. Let's take a look at what goes on behind the scenes during the authentication process. And unfortunately, there's a lot at stake if a user chooses weak credentials. Because this is such a common process now, it's become almost second-nature for some users to set up their accounts without much thought about the credentials they choose. Password authentication falls into the " what you know" category and is the most common form of authentication.Įvery time you've signed up for a website, you've likely been asked to create a username and password. What you are - Biometric data, such as fingerprint, retina scan, etc.What you have - A physical item you have, such as a cell phone or a card.What you know - Something you know, such as a password, PIN, personal information like mother's maiden name, etc.There are three factors of authentication: What is Username and Password AuthenticationĪuthentication is the process of verifying who a user claims to be. Since then, we've been using watchwords, now known as passwords, to verify someone's identity.īut does possessing knowledge of something actually confirm one's identity? In this article, you'll learn what username and password authentication is, some of the challenges that come with it, and one simple solution to address most of these challenges. These watchwords were required for soldiers to identify themselves as Roman soldiers so they could enter certain areas. Roman soldiers had to retrieve the tablets every evening at sunset and share them with their unit so that they would know the watchword for the following day. In Ancient Rome, a new watchword was assigned every day and engraved into a tablet. Passwords have been used throughout history to verify someone's identity by checking if they possess the knowledge required (i.e., a password) to access something.
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