Which security method should be included in a defense-in-depth, when examined from the perspective of a content security policy?

In a defense-in-depth strategy, the focus is on implementing multiple layers of security controls to protect data and resources. From the perspective of a content security policy, technological controls play a critical role. This approach encompasses various tools and technologies that can enforce policies at the technical level, such as firewalls, intrusion detection systems, and content filtering solutions.

Technological controls can actively monitor, filter, and regulate the content flowing into and out of an organization. They ensure that any sensitive information is adequately protected against unauthorized access or exposure. For example, a content security policy may dictate that certain types of content should not be accessed or shared within an organization, and the implementation of technological controls can help automate enforcement of these rules, effectively adding a layer that complements other security measures.

While contractual enforcement and training programs are essential components of a comprehensive security strategy, they primarily address policy adherence through human factors and agreements rather than the immediate technological enforcement that is critical within a content security framework. Strong access controls are also vital but focus more on who can access systems rather than the content itself. Thus, technological controls are the most aligned with directly enforcing a content security policy in a defense-in-depth approach.