Network hardening

Defending against the malicious use of the Tor network

The Tor network is a system that conceals a user’s IP address. It allows anonymous – and often malicious – communication. This guidance shares advice on how to detect and prevent traffic from the Tor network.

Domain Name System security for domain owners

This publication provides information on DNS security for domain owners. It also shared helpful strategies to reduce the risk of domain misuse.

Domain Name System security for domain resolvers

This publication explores DNS security for recursive resolution servers. It also shares helpful strategies to reduce the risk of DNS resolver subversion or compromise.

Implementing network segmentation and segregation

Learn about practical strategies to make it harder for malicious actors to access sensitive data. This guidance is for those responsible for an organisation’s network architecture and design.

Securing edge devices

Malicious actors often target internet-facing edge devices to gain unauthorised access to enterprise networks. Learn how to secure edge devices such as routers, firewalls and VPN concentrators.

Geo-blocking in context: Realities, risks and recommendations

This guidance is intended for decision makers and cybersecurity practitioners. It highlights what to be aware of when identifying the source of a threat and the potential implications of geo-blocking in a broader cybersecurity strategy.