Internet Security: The Complete Picture
Click any section to explore. See how attackers exploit the web!
The Attack Chain: How It All Connects
1. Entry Point: Attacker compromises browser (MitB) or creates fake site (PitM)
2. Exploitation: Uses web vulnerabilities (XSS, clickjacking) or injection attacks (SQL)
3. Goal: Steal data (credentials, PII, financial info)
4. Extension: Target mobile apps (more access, less protection)
Defense requires protecting EVERY link in this chain!
Attack Flow: How Threats Connect
Critical Comparisons (Don't Confuse These!)
Man-in-the-Browser vs Page-in-the-Middle:
• MitB = malware inside your browser, sees real sites
• PitM = redirects you to fake sites you think are real
• PitM = redirects you to fake sites you think are real
XSS vs SQL Injection:
• XSS = inject JavaScript into webpages (runs in browser)
• SQL = inject commands into database queries (runs on server)
• SQL = inject commands into database queries (runs on server)
SSL/HTTPS Limitations:
• Encrypts data in transit (between browser & server)
• Does NOT protect against MitB (malware inside browser)
• Does NOT protect endpoints (your device security)
• Does NOT protect against MitB (malware inside browser)
• Does NOT protect endpoints (your device security)
SQL Injection Quick Reference
Authentication Bypass:
' OR '1'='1Comment Out Rest:
' OR '1'='1'--Union Attack:
' UNION SELECT Password FROM Users--Delete Everything:
'; DROP TABLE Users;--
Defense: Use parameterized queries (prepared statements) — NEVER concatenate strings!
Defense in Depth: Your Protection Stack
For Developers: Input validation, parameterized queries, CSP headers, HTTPS everywhere, code signing
For Users: Keep software updated, use MFA, avoid public Wi-Fi, check URLs carefully, limit app permissions
For Ethical Hackers: Pen testing, code review, vulnerability scanning, OWASP testing