Is your production network segmented into different security zones? Please describe your network architecture.
Explanation & Context
Explanation of the Question
This question is asking whether the organization has divided its production network into distinct security zones. Each zone should have its own set of security controls and policies. The goal of network segmentation is to limit the spread of threats and contain potential breaches. By segmenting the network, an organization can ensure that sensitive data and critical systems are isolated from less secure areas.
Why It Matters
Segmenting the network into security zones helps protect the organization's assets by creating barriers that prevent unauthorized access and limit the impact of a security incident. For example, if a breach occurs in one zone, it is less likely to spread to other parts of the network. This approach enhances the overall security posture and helps meet compliance requirements.
Example of Evidence
To demonstrate fulfillment of this question, an organization might provide a network diagram that shows how the production network is divided into different security zones. The diagram should highlight the boundaries between zones, the types of data and systems within each zone, and the security controls in place. Additionally, documentation of the policies and procedures governing access between zones would serve as strong evidence of proper network segmentation.
Example Responses
Example Response 1
Our production network, hosted on Heroku, is segmented into two main security zones: the application zone and the database zone. The application zone contains our web application and API services, while the database zone houses our PostgreSQL database. Access between these zones is restricted and monitored.
Example Response 2
Our production network on AWS is segmented into multiple security zones, including public, private, and restricted zones. The public zone hosts our web servers and content delivery services, the private zone contains our application servers and microservices, and the restricted zone houses our sensitive data and critical systems. Each zone is isolated using VPCs, security groups, and network ACLs, with strict access controls and monitoring in place.
Example Response 3
As our software is deployed on-premises and not in a cloud environment, the concept of network segmentation into security zones as described does not directly apply. However, we have implemented physical and logical separation of our network segments based on function and sensitivity, with appropriate access controls and monitoring.
