Network Security Must-Haves Based on NCSC Guidance

This guide outlines essential network security measures based on guidance from the National Cyber Security Centre (NCSC). It details eight critical practices for enhancing network security. The first practice emphasizes the importance of defining and defending network boundaries by controlling traffic and establishing clear zones between different environments. The second practice focuses on setting clear firewall rules, including a 'deny all' policy to maximize protection. The guide also stresses securing DNS infrastructure to prevent tampering and using encryption for data in transit, recommending TLS and VPNs. Additionally, it advises the use of secure protocols and the necessity of monitoring network activity to spot threats early. The final practices include locking down remote access through strong authentication and keeping systems updated with regular patches. Each of these practices aims to create a robust security posture against evolving threats.