Government Advisory
ACSC Updates Guidance on Defending Microsoft Active Directory From Attackers
ACSC · 15 Sept 2026
Key Takeaway
If your business uses Microsoft Active Directory, read the ACSC's updated guidance and ask your IT provider how well your environment aligns with it.
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 securing them is so important.
Active Directory is widely used to manage user accounts and access to systems within an organisation. Because of that central role, it is a valuable target for attackers. The ACSC's guidance is aimed at helping organisations understand how these attacks happen and what they can do to reduce the likelihood of a successful compromise.
Businesses that rely on Active Directory, or who work with an IT provider that manages it for them, should review the full guidance on the ACSC website.