Certified AppSec Practitioner: Input Validation | Whitelist vs Blacklist

Welcome to Topic 1 of the Certified AppSec Practitioner (CAP) course! In this video, we’ll break down one of the most fundamental concepts in application security — Input Validation. You’ll learn the difference between blacklisting and whitelisting, how improper validation leads to vulnerabilities like XSS, SQL Injection, and Command Injection, and best practices to secure user inputs. This lesson is perfect for beginners preparing for the CAP certification, bug bounty hunters, and web app security learners who want a solid foundation in input validation mechanisms. 👉 What you’ll learn: What is Input Validation Whitelisting vs Blacklisting Frontend and Backend Validation Common input validation mistakes Real-world examples and prevention tips 📚 Stay tuned for the complete CAP Exam series! Like 👍, share 🔁, and subscribe 🔔 for more AppSec and ethical hacking lessons. Certified AppSec Practitioner CAP Exam Preparation Input Validation Mechanisms Whitelisting vs Blacklisting AppSec Tutorial CAP Certification Course Application Security for Beginners Web Application Security Input Validation in Cybersecurity AppSec Training for CAP #AppSec #CAPExam #CertifiedAppSecPractitioner #CyberSecurity #WebSecurity #BugBounty #EthicalHacking #InputValidation #Whitelisting #Blacklisting #OWASP #webappsecurity Disclaimer: The content on this channel is for educational purposes only. Engaging in any hacking or unauthorized access without proper authorization is illegal. Any actions taken based on the information provided are at your own risk.