The Evolution of User Authentication: From Passwords to Biometrics 

Explore the journey of user authentication methods, from the simplicity of passwords to the sophistication of biometric solutions. various methods developed over time, including two-factor authentication, and advanced biometrics like iris scanning.  

 The oldest method, users create and remember a secret word or phrase. – 

 Passwords 🔒

Simple number combinations, often used for bank cards and phone locks. 

PIN Codes 🔢

 Adds a second layer, like a code sent to your phone, for more security. 

Two-Factor Authentication (2FA) 🔑📱

Personal questions that only the user should know the answers to, used as a backup for passwords. 

Security Questions ❓

Physical cards with embedded chips that require a PIN, used for secure access. 

Smart Cards 💳

 Codes that are valid for only one login session, usually sent via SMS or email. 

One-Time Passwords (OTP) 🔄

 Uses unique patterns in your fingerprint for authentication, common in phones and laptops. 

Fingerprint Scanning 👆

Scans your face using a camera to verify identity, used in many modern devices. 

Facial Recognition 😊📸

Uses the unique patterns in your eye's iris for high-security authentication, often seen in advanced security systems. 

Iris Scanning 👁️

 Tools that generate, store, and autofill complex passwords, helping users manage and secure their passwords more effectively. 

Password Managers 🔐

Regularly update passwords, use 2FA, and be cautious of phishing scams to enhance security. 

Preventive Measures 🚧