Web Application Firewall
Full Form of WAF
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.