Guía COMPLETA de SEGURIDAD para evitar ATAQUES XSS y SQL INJECTION 💣 CÓMO lo hacen y cómo evitarlo

Your website may be under attack right now without you even knowing it. XSS and SQL Injection attacks allow attackers to steal data, compromise accounts, and break entire applications. In this episode, you'll learn how to protect a PHP web application against the most common attacks. 📚 Series: Web Security with PHP and MySQL ▶ Previous Episode: ✅ Create a LOGIN and REGISTRATION with PHP and MySQL (From Scratch) 👉    • ✅ Crea un LOGIN y REGISTRO con PHP y MySQL...   ▶ Next Episode: 👉 Coming soon – subscribe so you don't miss it ▶ (https://bit.ly/3t63QeN) 📅 SERIES EPISODES: Episode 1: ✅ Create the LOGIN with HTML5, CSS3, and best practices ▶    • LOGIN y REGISTRO con HTML5 y CSS3 — Episod...   Episode 2: ✅ Why does your JAVASCRIPT VALIDATION always fail? 🚨 (And how to do it like a PRO) ▶    • 👉 Cómo VALIDAR Formularios HTML con JAVASC...   Episode 3: ✅ Create a LOGIN and REGISTRATION with PHP and MySQL (From scratch) ▶    • ✅ Crea un LOGIN y REGISTRO con PHP y MySQL...   Episode 4: ✅ This video Episode 5: (Coming soon): More security: Password hashing More episodes coming soon 🎉 (Prepared queries and other topics...) You'll see how to VALIDATE and SANITIZE form, login, and registration data using: PHP filters and validations Regular expressions HTML SpecialChars and data sanitization And web security best practices This video is ideal if you're creating a PHP project, a LOGIN, or a REGISTRATION system. ⏱️ CHAPTERS: 00:00 - Why your website is NOT SECURE 00:23 - JavaScript validation is NOT secure 01:30 - SQL injection attack 03:30 - The XSS (Cross-Site Scripting) attack 08:53 - Validation filters (filter_var and filter_input) 13:24 - Validating form data 14:55 - Email validation 16:44 - Password validation using regular expressions 19:44 - We only execute code if there is POST data 25:05 - Keeping form data correct 30:30 - How to fix the accent problem 31:45 - Using htmlspecialchars 33:48 - Checking existing data 🚀 Become a MEMBER of the Channel: 👉 https://bit.ly/3sYpjGz