Latest publications 27 May 2026 Opportunities for AI in cyber defence This publication provides guidance on how organisations can adopt frontier AI to strengthen cyber defence while managing associated risks. 01 May 2026 Careful adoption of agentic AI services Agentic AI enables powerful automation but introduces significant security risks. Our new guidance helps organisations consider its careful adoption, prioritising secure and resilient use. 09 Apr 2026 Detecting socially engineered messages Socially engineered messages pose a significant threat to organisations. They can have a big impact, helping malicious actors access accounts, systems or sensitive information. Learn how to spot a socially engineered message, including through email, SMS, social media or messaging apps. All publications Title AudienceIndividuals & familiesSmall & medium businessesOrganisations & Critical InfrastructureGovernment Sort by Sort byDate updated (new to old)Date updated (old to new)Title (A-Z)Title (Z-A) Items per page 61218243036424854606672788490200 06 Oct 2021 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. 06 Oct 2021 Fundamentals of Cross Domain Solutions This publication introduces technical and non-technical audiences to cross domain security principles for securely connecting security domains. 06 Oct 2021 How to combat fake emails Organisations can reduce the likelihood of their domains being used to support fake emails by implementing Sender Policy Framework (SPF) and Domain-based Message Authentication, Reporting and Conformance (DMARC) records in their Domain Name System (DNS) configuration. Using DMARC with DomainKeys Identified Mail (DKIM) to sign emails provides further safety against fake emails. Likewise, organisations can better protect their users against fake emails by ensuring their email systems use and apply SPF, DKIM and DMARC policies on inbound email. 06 Oct 2021 How to manage your security when engaging a managed service provider Understand the actions organisations can take to manage the security risks posed by engaging and authorising network access for managed service providers. 06 Oct 2021 Implementing certificates, TLS, HTTPS and opportunistic TLS Transport Layer Security (TLS) is a widely used encryption protocol which enables parties to communicate securely over the internet. Through the use of certificates and Public Key Infrastructure (PKI), parties can identify each other through a trusted intermediary and establish encrypted tunnels for the secure transfer of information. 06 Oct 2021 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. Pagination Previous page ‹‹ Page 20 Next page ›› Alerts and Advisories Advice, guidance and publications Reports and statistics News Programs Glossary