What is Authentication : The Gatekeeper

The Gatekeeper Every building that matters has one. A bouncer at the door. A security guard at the lobby. A lock on the gate. Something — or someone — whose entire job is to look you in the eye and ask a single question before letting you through. Are you really who you say you are? In the digital world, that question has a name. It’s called authentication. And every time you tap “Log In” on any app, anywhere in the world, a gatekeeper quietly wakes up and goes to work. This is what happens...