Which phrase best summarizes the concept of "Defense in Depth" in cybersecurity?

The concept of "Defense in Depth" in cybersecurity emphasizes the use of multiple layers of security controls to protect an organization's data and resources. This approach is grounded in the idea that no single security measure is entirely foolproof. By employing a diverse array of security measures—such as firewalls, intrusion detection systems, encryption, access controls, and security awareness training—organizations can create overlapping layers of defense. If one layer fails, the next layer is there to provide protection, significantly reducing the risk of a successful breach or attack.

The phrase that encapsulates this idea highlights the importance of variety in security controls, which works to mitigate the vulnerabilities and threats that an organization faces. This multifaceted approach is crucial in building a robust security posture that can adapt to various attack vectors and evolving threats.