Learning PHP 7 (Video 20)

The video tutorial covers essential security concepts for web applications, focusing on user interaction. It explains common vulnerabilities like Cross-Site Scripting (XSS), SQL Injection, and Cross-Site Request Forgery (CSRF), providing examples and prevention techniques. The importance of using prepared statements, input validation, and security frameworks like PDO and Doctrine is emphasized to mitigate these risks.

What is a common method to prevent cross-site scripting (XSS) attacks?

• Using strong passwords

• Encrypting all user data

• Disabling JavaScript in browsers

• Using HTML encoding functions

How can SQL injections be prevented in web applications?

• By using prepared statements

• By encrypting the database

• By disabling SQL queries

• By using complex passwords

What is a cross-site request forgery (CSRF) attack?

• An attack that encrypts user data

• An attack that exploits a user's session to perform unauthorized actions

• An attack that steals user credentials

• An attack that injects malicious SQL code

Which of the following is a common technique to mitigate CSRF attacks?

• Using random tokens in forms

• Encrypting all user data

• Disabling cookies

• Using complex passwords

What is the role of frameworks like PDO in web application security?

• They automatically update security patches

• They provide ready-to-use systems to handle security issues

• They encrypt all user data

• They disable all forms of user input