AuthN
Authentication is the process of verifying the identity of a user, system, or device — confirming they are who they claim to be before granting access.
⚙️ How Does It Work?
Through factors the user knows (password), has (token, phone), or is (biometrics). Multi-factor authentication combines two or more of these.
📍 Where Is It Used?
Every digital system — websites, enterprise apps, VPNs, operating systems, APIs.
💡 Real-World Example
An employee logs in to the corporate VPN by entering her password and approving a push notification on her phone. Both factors verified means authenticated.
🔗 Related Terms
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