What does WAF stand for?

WAF stands for Web Application Firewall. This term refers to a security device or service that monitors, filters, and controls incoming and outgoing HTTP/HTTPS traffic to a web application. The primary purpose of a WAF is to protect web applications from various types of attacks, including cross-site scripting (XSS), SQL injection, and other vulnerabilities that could threaten the integrity of the application and its data.

A WAF operates at the application layer (Layer 7 of the OSI model), which allows it to examine and filter traffic based on specific application-level rules. By analyzing the HTTP requests and responses, a WAF can block malicious traffic before it reaches the web application, thereby preventing data breaches and ensuring compliance with regulations.

The other options do not accurately describe what WAF signifies or its function in the cybersecurity landscape. For instance, "Web Application Function" and "Wireless Access Framework" do not relate to the protective role of a WAF in securing web applications. Additionally, "Web Application Filter" may seem somewhat related, but it lacks the specificity and recognized terminology that "Web Application Firewall" provides in the context of cybersecurity.