Acronym for Web Application Firewall—protecting web applications from common attacks.
WAF stands for Web Application Firewall. See 'Web Application Firewall' for the full definition. Cloud-based WAF services have made web application protection accessible to organisations of all sizes.
Why It Matters
The DSC Perspective:
If you have customer-facing web applications, WAF is essential protection. It's specifically required by PCI DSS and expected in most security questionnaires for web-based services.