Which of the following is NOT a layer typically associated with Defense in Depth?

Defense in Depth is a security strategy that employs multiple layers of defense to protect information and systems. Each layer is designed to protect against different threats and vulnerabilities, creating a comprehensive security posture.

The layers typically associated with Defense in Depth include:

• Application: This layer focuses on securing applications from threats that might exploit vulnerabilities. It includes practices such as patch management, secure coding, and application firewalls.

• Data: This layer concerns itself with protecting data at rest and in transit. Techniques include encryption, access controls, and data loss prevention strategies to safeguard sensitive information.

• Host: This layer includes securing individual devices such as servers and workstations. It involves measures like antivirus software, host firewalls, and system hardening to protect against attacks targeting the host.

Public Awareness, while important for fostering a security-conscious culture within an organization, is not considered a formal layer of Defense in Depth. It focuses on educating users about security best practices and recognizing threats, but it does not provide a direct technical layer of protection like the other options do. Thus, Public Awareness stands apart from the typical layers associated with Defense in Depth.