Which method is advised for securing incoming administrative traffic to CyberArk servers?

Employing network-based firewalls and IPsec is crucial for securing incoming administrative traffic to CyberArk servers. This method establishes a protective barrier between the CyberArk servers and potential threats that may originate from the network. Network-based firewalls help restrict access to only approved IP addresses and services, significantly reducing the attack surface by preventing unauthorized access attempts.

Moreover, IPsec adds an additional layer of security by encrypting the data in transit. This prevents interception and ensures that administrative commands and data are securely transmitted over potentially vulnerable networks. The combination of these two methods creates a robust security framework that effectively protects sensitive administrative traffic within the CyberArk environment.

While other options might have their place in security protocols, they do not provide the same level of comprehensive protection for incoming administrative traffic as network-based firewalls and IPsec do. For instance, heuristic monitoring focuses on detecting anomalies rather than proactively blocking unauthorized traffic, and allowing all traffic disregards the fundamental principle of least privilege. Basic authentication offers limited protection and does not account for encryption or the need to restrict access based on specific criteria, making it less secure compared to the combination of firewalls and IPsec.