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Log4j: What Boards and Directors Need to Know   Advisory

Jan 7, 2022 - Log4j is a software library used as a building block found in a wide variety of Java applications. The Log4j vulnerability – otherwise known as Log4Shell – is trivial to exploit, and represents a significant business continuity risk. This publication outlines what Boards and Directors need to know in order to protect their businesses.

Foundations for OT cybersecurity: Asset inventory guidance for owners and operators   Publication

Aug 14, 2025 - This guidance outlines how OT owners and operators can create and maintain an asset inventory and OT taxonomy, to protect their most vital assets. It includes steps for defining scope and objectives for the inventory, identifying assets, collecting attributes, creating a taxonomy, managing data, and implementing asset life cycle management.

Principles for the secure integration of Artificial Intelligence in Operational Technology   Publication

Dec 4, 2025 - This publication provides guidance for critical infrastructure owners and operators for integrating AI into operational technology (OT) environments. It outlines key principles to leverage the benefits of AI in OT systems while minimising risk.

Russian FSB cyber actor Star Blizzard continues worldwide spear-phishing campaigns   Advisory

Dec 8, 2023 - The Russia-based actor is targeting organisations and individuals in the UK and other geographical areas of interest.

Cloud computing security for executives   Publication

Jan 18, 2024 - This publication is designed to provide executives from organisations looking to utilise cloud computing services an overview of the components that make up ‘cloud’ and help understand the security risks to be considered when using cloud computing.

Implementing SIEM and SOAR platforms   Guidance

May 27, 2025 - SIEM and SOAR platforms can greatly benefit your organisation by collecting, centralising, and analysing important data, detecting cyber security events and incidents and prompting timely intervention.

Guidance on digital forensics and protective monitoring specifications for producers of network devices and appliances   Publication

Feb 5, 2025 - This guidance has been developed with contributions from partnering agencies and is included in a series of publications aiming to draw attention to the importance of edge device cyber security measures.

Malware   Threat

Nov 10, 2023 - Malware (short for 'malicious software') is software that cybercriminals use to harm your computer system or network. Cybercriminals can use malware to gain access to your computer without you knowing, in targeted or broad-based attacks.

Artificial intelligence and machine learning: Supply chain risks and mitigations   Publication

Oct 16, 2025 - This guidance is intended for organisations and staff that deploy or develop AI or ML systems and components.

2023 top routinely exploited vulnerabilities   Advisory

Nov 13, 2024 - This advisory provides details, collected and compiled by the authoring agencies, on the Common Vulnerabilities and Exposures (CVEs) routinely and frequently exploited by malicious cyber actors in 2023 and their associated Common Weakness Enumerations (CWEs). Malicious cyber actors exploited more zero-day vulnerabilities to compromise enterprise networks in 2023 compared to 2022, allowing them to conduct operations against high priority targets.
The authoring agencies strongly encourage vendors, designers, developers, and end-user organizations to implement the following recommendations, and those found within the Mitigations section of this advisory, to reduce the risk of compromise by malicious cyber actors.

Exploitation of Unitronics Programmable Logic Controllers (PLCs)   Alert

Dec 5, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is concerned about global exploitation of Programmable Logic Controllers (PLC) and is aware of reports of compromise of these devices in Australia. These devices are present in a number of critical sectors such as water, energy, fuel and healthcare.

ASD’s role in cyber security: For legal practitioners   Guidance

Dec 11, 2024 - During a cyber security incident, or suspected cyber security incident, our goal is to work with impacted organisations, their legal representation, and any external vendors engaged to investigate an incident on behalf of the organisation.

Iranian Government-Sponsored APT Cyber Actors Exploiting Microsoft Exchange and Fortinet Vulnerabilities in Furtherance of Malicious Activities   Advisory

Nov 22, 2021 - Iranian government-sponsored APT actors are actively targeting a broad range of victims across multiple U.S. critical infrastructure sectors, including the Transportation Sector and the Healthcare and Public Health Sector, as well as Australian organisations.

PRC state-sponsored actors compromise and maintain persistent access to U.S. critical infrastructure   Advisory

Feb 8, 2024 - The Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), and Federal Bureau of Investigation (FBI) assess that People’s Republic of China (PRC) state sponsored cyber actors are seeking to preposition themselves on IT networks for disruptive or destructive cyberattacks against U.S. critical infrastructure in the event of a major crisis or conflict with the United States.

Critical vulnerabilities in Ivanti Connect Secure, Ivanti Policy Secure and Ivanti Neurons for ZTA Gateways   Alert

Jan 9, 2025 - Ivanti has identified critical vulnerabilities affecting Ivanti Connect Secure, Ivanti Policy Secure and Ivanti Neurons for ZTA Gateways. Customers should update to available patched versions immediately and monitor Ivanti’s Security Advisory for further advice.

Limited Use    Guidance

Dec 3, 2024 - The limited use obligation for the Australian Signals Directorate (ASD) has been legislated to add additional protections to the information organisations voluntarily provide to ASD, and to the information acquired or prepared by ASD with the consent of an organisation.

Preventing Web Application Access Control Abuse   Advisory

Jul 28, 2023 - The Australian Cyber Security Centre (ACSC), U.S. Cybersecurity and Infrastructure Security Agency (CISA), and U.S. National Security Agency (NSA) are releasing this joint Cybersecurity Advisory to warn vendors, designers, and developers of web applications and organizations using web applications about insecure direct object reference (IDOR) vulnerabilities.

Russian GRU targeting Western logistics entities and technology companies   Advisory

May 22, 2025 - This joint cybersecurity advisory (CSA) highlights a Russian state-sponsored cyber campaign targeting Western logistics entities and technology companies.

ASD's ACSC and international partners encourage action to mitigate risks for Log4j vulnerability   News

Dec 23, 2021 - ASD's ACSC and cyber security agency partners have issued a joint statement and advisory on the Log4j vulnerability providing technical details, mitigations and resources to help address the critical software flaw.

Cyber security incident response  

Apr 12, 2024 - This page lists publications on preparing for and responding to cyber security incidents.