IYour login form can be hacked with 1 line 💉👇 This is SQL Injection — the #1 backend attack that still owns companies in 2025. ' OR '1'='1 That's it. That's all it takes to dump your entire database if you do this: ❌ query = "SELECT * FROM users WHERE email = '" + input + "'" ✅ FIX IT LIKE THIS: Use prepared statements / parameterized queries. Always. I explained the full attack + how to prevent it in this reel. Save this before your next interview. Share with that friend who still concatenates SQL strings.