Unless you lose them. Authentication isn't just about allowing people you know in, if they know the secret pass-phrase that never changes. It's also about knowing they are who they say they are. Two-factor authentication radically improves that second aspect (in most / ideal cases).
Unless you lose them. Authentication isn't just about allowing people you know in, if they know the secret pass-phrase that never changes. It's also about knowing they are who they say they are. Two-factor authentication radically improves that second aspect (in most / ideal cases).