Government Advisory
ACSC Updates Guidance on Protecting Active Directory from Cyber Attacks
ACSC · 15 Sept 2026
Key Takeaway
If your business uses Microsoft Active Directory, read the ACSC's updated guidance and check that your setup follows its recommendations.
The Australian Cyber Security Centre (ACSC) has published updated guidance on detecting and mitigating Active Directory compromises. The guidance explains how malicious actors target Microsoft Active Directory environments and why these systems are so important to secure.
Active Directory is widely used by organisations to manage user accounts and access to systems. Because of its central role, it is a high-value target for attackers. The ACSC guidance sets out steps organisations can take to reduce the likelihood of cyber attacks against these environments.
Businesses that rely on Microsoft Active Directory should review the updated guidance on the ACSC website to understand the risks and the recommended defences.