Cyber Security Certifications Practice Test

The concept of 'defense in depth' is a strategic approach to cybersecurity that involves implementing multiple layers of security measures to protect information systems. This method is designed to provide redundancy in case one layer fails or is breached, ensuring that there are additional security controls in place to mitigate risks.

This layered approach encompasses various types of security controls, including but not limited to physical security, firewalls, intrusion detection systems, encryption, and access controls. By having multiple layers, the organization increases its resilience against attacks, as an adversary would need to bypass each layer to gain access to critical systems or data. This not only helps in defending against external threats but also provides protection against internal vulnerabilities.

Focusing on a single layer of security, only physical measures, or relying solely on encryption would leave the system exposed to various types of attacks. Such strategies may fail to consider holistic security needs, making them inadequate in effectively addressing the complex threats faced in modern cybersecurity landscapes.