<ul><li>A WAF, or Web Application Firewall, acts as a security filter between users and web applications, blocking malicious requests in real time before reaching the backend.</li><li>A typical WAF can block common web attacks, detect bots, rate-limit requests, log suspicious traffic, and apply custom rules to safeguard APIs.</li><li>WAFs work as reverse proxies, inspecting every request and response to match against security rules, including signature-based detection and heuristic analysis.</li><li>It is crucial to use a WAF, especially for publicly accessible apps, as an additional layer of protection against exploits, despite following security guidelines and writing secure code.</li></ul>

What Is a WAF? A Beginner’s Guide to Web App Firewalls

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