One of Your Web Design Clients Contacts You to Report

Multiple Choice

One of your web design clients contacts you to report that a visitor on their site submitted a form. A malicious web site then opened in a new window and launched malware on the visitor's computer. What is the probable cause of this attack placed on the web form?

A) Failure to sanitize input fields
B) Failure to validate input fields
C) Failure to include CAPTCHA
D) Failure to encrypt post data