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With the rapid evolution of cybersecurity threats, relying on a single layer of defense is no longer sufficient to safeguard your online presence. This makes it imperative for website owners to have a multi-layered security approach, which is best represented by the concept of defense in depth.
In websites and web applications, defense in depth can be implemented by using HTTP security response headers, specifically designed to enforce additional security controls on the client side. HTTP response headers are an important second line of defense against cyber attacks targeting web applications.
As one of the key HTTP security response headers, Content Security Policy (CSP) can effectively protect your website and its visitors from the devastating consequences of cross-site scripting (XSS) and data injection attacks.