To further reduce the risk of attack across security zones, what measure should the IT security team apply?

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Applying the principle of least privilege when defining traffic policies between security zones is crucial in mitigating the risk of attacks. This principle dictates that any user, application, or system should only have the minimum levels of access necessary to perform its functions. By implementing this approach to traffic policies, the organization limits the exposure of sensitive information and critical systems to only those entities that require access for legitimate purposes.

In the context of security zones, this means that communication between different zones should be tightly controlled. For example, if a workstation in one zone does not need to communicate with a server in another zone, such traffic should be blocked. By doing so, even if an attacker gains access to one zone, their ability to move laterally and exploit other zones is significantly reduced, thus enhancing the overall security posture of the organization.

Other measures, while important for security, do not specifically address the inter-zone traffic control in the same focused way. Regularly updating software helps reduce vulnerabilities but does not inherently reduce risks associated with how traffic flows between zones. Establishing a security operations center enhances monitoring and response capabilities but still requires proper traffic policies to effectively manage security across zones. Implementing stronger authentication measures secures access but does not prevent unauthorized traffic flows between zones. Therefore, the