gen-define-http-versus-https-and-give-one-short-worked-example-1f81

Define HTTP versus HTTPS and give one short worked example.

# HTTP vs HTTPS ## Definitions **HTTP (Hypertext Transfer Protocol)** - Standard protocol for transmitting data over the web - Data sent in **plain text** (unencrypted) - Anyone intercepting the connection can read the data - Uses port 80 by default **HTTPS (HTTP Secure)** - HTTP with encryption via SSL/TLS - Data is **encrypted** before transmission - Protects against eavesdropping and tampering - Uses port 443 by default ## Short Worked Example **Scenario:** You log into a website with username "john" and password "secret123" ### With HTTP (http://example.com): ``` Transmitted data (visible to anyone intercepting): POST /login username=john&password=secret123 ``` ☠️ **Result:** An attacker on the same WiFi network can see your password in plain text! ### With HTTPS (https://example.com): ``` Transmitted data (encrypted): POST /login d8f3k2j9f83jf93jf893jf8923jf... (encrypted gibberish) ``` ✅ **Result:** Even if intercepted, attackers only see encrypted data they cannot read. --- **Bottom line:** Always use HTTPS for sensitive data (passwords, credit cards, personal info). Look for the padlock 🔒 icon in your browser!