Assignment 4 cybersecurity strategy for the critical infrastructure | CSIS 343 - Cybersecurity
- Propose strategies for securing communication networks within the critical infrastructure
company. Discuss the importance of network segmentation, encryption, and intrusion detection/prevention systems to safeguard against unauthorized access, data tampering, and network-based attacks. Securing communication networks within a critical infrastructure company is essential to protect against unauthorized access, data tampering, and network-based attacks. Implementing a comprehensive security strategy involves various measures, and here are some key strategies focusing on network
segmentation, encryption, and intrusion detection/prevention systems:
Network Segmentation:
Importance: Network segmentation involves dividing the network into smaller, isolated segments. This limits the lateral movement of attackers, containing potential breaches and minimizing the impact of a security incident.
Strategies:
Employ VLANs (Virtual Local Area Networks) to logically isolate different network segments. Use firewalls to enforce strict traffic controls between segments. Implement strict access controls and least privilege principles to limit user and system access within each segment. Regularly review and update segmentation policies to adapt to evolving threats.
Encryption:
Importance: Encryption ensures that data remains confidential and secure during transmission and storage, protecting it from eavesdropping and unauthorized access.
Strategies:
Use strong encryption protocols for data in transit (e.g., SSL/TLS for web traffic, IPsec for network communications).
Strategies:
Develop an incident response plan outlining roles, responsibilities, and communication procedures. Conduct regular tabletop exercises to simulate and test the incident response plan. Establish a communication plan to notify relevant stakeholders in the event of a security incident. Continuously improve the incident response plan based on lessons learned from exercises and real incidents. By combining these strategies, critical infrastructure companies can create a robust security framework to safeguard communication networks against a wide range of threats and vulnerabilities. Regularly updating and adapting these measures are crucial to staying ahead of evolving cybersecurity threats.