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Essential Eight maturity model changes Publication
Nov 27, 2023 - This publication provides an overview of the changes for the November 2023 release.
Implementing SIEM and SOAR platforms: Executive guidance Publication
May 27, 2025 - This publication is one of three in a suite of guidance on SIEM and SOAR platforms. It is primarily intended for executives but can be used by any organisation that is considering whether and how to implement a SIEM and/or SOAR.
Managing the risks of legacy IT: Practitioner guidance Publication
Jun 12, 2024 - This publication provides guidance for practitioners on managing the risks posed by legacy IT and outlines low-cost mitigations that organisations can draw upon.
Mergers, acquisitions and Machinery of Government changes Publication
Jun 10, 2022 - This publication provides guidance on strategies that organisations can apply during mergers, acquisitions and Machinery of Government changes.
Update your small business cyber security News
Jun 12, 2024 - Resources to help protect small businesses from cyber threats.
2021-007: Log4j vulnerability – advice and mitigations Advisory
Dec 29, 2021 - On 10 December 2021, ASD's ACSC released an alert relating to a serious vulnerability in versions of the Log4j Java logging library. Malicious cyber actors are using this vulnerability to target and compromise systems globally and in Australia. The ASD's ACSC is working with a significant number of victims and affected vendors across all sectors of the economy.
People’s Republic of China (PRC) State-Sponsored Cyber Actor Living Off the Land to Evade Detection Alert
May 25, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC), in conjunction with the United States (US) National Security Agency (NSA) its international partners, has released a Cybersecurity Advisory regarding a PRC state-sponsored cyber actor conducting activity impacting US critical infrastructure (CI) sectors. Because of the potential risk to CI sectors outside the US, all organisations are encouraged to review the published Advisory and report any malicious activity to the ASD's ACSC.
Cyber security guidelines
Jun 13, 2024 - Practical guidance on how an organisation can protect their information technology and operational technology systems, applications and data from cyber threats.
OS Command Injection Vulnerability in GlobalProtect Gateway Alert
May 3, 2024 - ASD’s ACSC is aware of a vulnerability (CVE-2024-3400) that enables an unauthenticated attacker to execute arbitrary code with root privileges on the firewall.
Operational technology environments
Jan 15, 2026 - This page lists publications on critical infrastructure and their supporting operational technology environments.
BADBAZAAR and MOONSHINE: Spyware targeting Uyghur, Taiwanese and Tibetan groups and civil society actors Advisory
Apr 9, 2025 - This advisory is jointly produced by government agencies from the UK, Australia, Canada, Germany, New Zealand, and the US and is supported by members of the NCSC’s Cyber League. Its purpose is to raise awareness about the growing threat that malicious cyber actors pose to individuals connected to topics including Taiwan, Tibet, Xinjiang Uyghur Autonomous Region, democracy movements and the Falun Gong.
Cyber resources for small businesses News
Feb 11, 2022 - Last December, the Council of Small Business Organisations Australia (COSBOA) co-hosted an Act Now, Stay Secure breakfast at the National Portrait Gallery, along with the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and the Department of Home Affairs.
Essential Eight maturity model FAQ Publication
Oct 28, 2024 - This publication provides answers to frequency asked questions on how to implement the Essential Eight.
Cloud computing security for cloud service providers Publication
Jan 18, 2024 - This publication is designed to assist cloud service providers (CSPs) in offering secure cloud services. It can also assist assessors in validating the security posture of a cloud service, which is often verified through an Infosec Registered Assessors Program (IRAP) assessment of the CSP services.
Cyber incident management arrangements for Australian governments Publication
Sep 18, 2023 - The CIMA provides Australian governments with guidance on how they will collaborate in response to, and reduce the harm associated with, national cyber incidents.
Managing cyber supply chains
Dec 3, 2020 - This page lists publications on cyber supply chain risk management.
The Commonwealth Cyber Security Posture in 2025 Reports and statistics
Feb 12, 2026 - The Commonwealth Cyber Security Posture in 2025 informs the Australian Parliament on cyber security measures implemented across the Australian Government for the 2024–25 financial year.
Cyber Security Awareness Month 2025
Sep 30, 2024 - Take action to protect your networks and digital infrastructure now and into the future.
Microsoft Exchange ProxyShell Targeting in Australia Alert
Aug 19, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has observed targeting of the Microsoft Exchange ProxyShell vulnerability by Malicious actors.
New guidance to help fortify Australia’s critical infrastructure News
Oct 13, 2025 - Australian CI is, and will continue to be, an attractive target for state-sponsored cyber actors. Read the CI Fortify publication to learn two actions CI operators can take to strengthen their resilience in preparation for instances of crisis or service disruption.