Full Form of WAF

Full formTechnology
WAFstands for

Web Application Firewall

What is WAF?

A Web Application Firewall (WAF) is a security solution that monitors, filters, and blocks malicious HTTP/HTTPS traffic to and from a web application. In India, as digital transactions and e-governance portals have surged, WAFs have become essential for protecting sensitive data in sectors like banking, e-commerce, and healthcare. It is deployed as a network-based, host-based, or cloud-based service, often integrated with Content Delivery Networks (CDNs). WAFs inspect incoming requests against a set of rules—such as SQL injection, cross-site scripting (XSS), and session hijacking—to prevent attacks before they reach the application server. The Reserve Bank of India (RBI) and the Indian Computer Emergency Response Team (CERT-In) recommend WAF usage for compliance and security hardening. Cloud-based WAFs, like those offered by Indian providers, are popular for their scalability and ease of deployment. WAFs are a common topic in cybersecurity certifications and competitive exams for IT professionals, including those preparing for CEH and CISSP.

WAF का फुल फॉर्म

वेब एप्लीकेशन फ़ायरवॉल

Example

Our bank deployed a cloud-based WAF to protect its net banking portal from SQL injection attacks during the fiscal year end.

WAF — frequently asked questions

What is the full form of WAF?
The full form of WAF is Web Application Firewall.
How does a WAF help Indian businesses?
A WAF filters malicious traffic to web applications, preventing data breaches and ensuring compliance with RBI and CERT-In guidelines for banks and e-commerce platforms.
What is the difference between WAF and a network firewall?
A network firewall controls traffic between networks (e.g., internet and LAN), while a WAF specifically protects web applications by inspecting HTTP/HTTPS requests for application-layer attacks.
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