🔐 Authentication vs Authorization

🧑‍💻 Authentication

• Defines: Who you are

• Purpose: Verify identity

• Happens: Before authorization

• Examples:

  • 🔑 Entering username & password

  • 📲 Logging in with Google

  • 🔍 Scanning fingerprint

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🛂 Authorization

• Defines: What you can do

• Purpose: Control access

• Happens: After authentication

• Examples:

  • ✅ Access to admin dashboard

  • 🚫 Restricting users from editing content

  • 📂 Viewing certain files

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💡 Think of It Like This

🏛️ Authentication = Showing your ID at the door
🚪 Authorization = Which rooms you're allowed to enter

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✅ Both work together to keep apps and data secure.
Without one, the other can't function effectively.