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Advisory 2020-017: Resumption of Emotet malware campaign Advisory
Oct 30, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) has observed the resumption of an ongoing and widespread campaign of malicious emails designed to spread the Emotet malware across a variety of sectors in the Australian economy, including critical infrastructure providers and government agencies.
#StopRansomware: BianLian Ransomware Group Advisory
Nov 21, 2024 - The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) are releasing this joint Cybersecurity Advisory to disseminate known BianLian ransomware and data extortion group IOCs and TTPs identified through FBI and ASD's ACSC investigations as of March 2023.
Personal cyber security: Next steps guide Guidance
Jun 16, 2023 - The second of three cyber security guides in the personal cyber security series is designed to help everyday Australians understand a moderate level of cyber security and how to take action to protect themselves from cyber threats.
Australia joins US and UK to warn of 2021 Ransomware trends News
Feb 10, 2022 - Ransomware continues to be a global threat, and cybercriminals using ransomware pose a significant risk to Australian organisations and households.
Small business Google Chromebook and ChromOS security guide Guidance
Nov 12, 2024 - This publication was developed by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) with technical input from Chrome Engineering.
Joint cybersecurity advisory released on 2021's top routinely exploited vulnerabilities News
Apr 28, 2022 - Malicious cyber actors are aggressively targeting newly-disclosed and dated critical software vulnerabilities against a broad range of targets, including public and private sector organisations worldwide.
Scattered Spider Advisory
Jul 30, 2025 - This joint Cybersecurity Advisory is in response to recent activity by Scattered Spider threat actors against the commercial facilities sectors, subsectors, and other sectors. This advisory provides tactics, techniques, and procedures (TTPs) obtained through FBI investigations as recently as June 2025
Choosing secure and verifiable technologies Publication
Dec 5, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and international partners have provided recommendations in this guide as a roadmap for choosing secure and verifiable technologies.
Social media terms of use
May 7, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) uses a number of social media services as part of its communications activities. These services include Facebook, Twitter, LinkedIn, Vimeo and YouTube.
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.
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.
Australian Signals Directorate’s Cyber Security Partnership Program Program page
The Australian Signals Directorate's Australian Cyber Security Partnership Program enables Australian organisations and individuals to engage with the ASD's ACSC and fellow partners, drawing on collective understanding, experience, skills and capability to lift cyber resilience across the Australian economy.
2021 Top Malware Strains Advisory
Aug 5, 2022 - This joint Cybersecurity Advisory (CSA) was coauthored by the Cybersecurity and Infrastructure Security Agency (CISA) and the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC).
Mitigation strategies for edge devices: Practitioner guidance Publication
Feb 4, 2025 - This publication expands on Mitigation strategies for edge devices: executive guidance. It provides IT practitioners with a list of mitigation strategies for the most common types of edge devices and appliances across enterprise networks and large organisations.
New guidance for engaging with artificial intelligence News
Jan 24, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has released a new publication, Engaging with Artificial Intelligence (AI).
Mitigations for network defence Publication
Oct 15, 2025 - This guidance provides actions for both executives and technical staff to strengthen their organisation’s network infrastructure.
Event logging
Jun 5, 2025 - This page lists publications on performing effective system monitoring.
Modern defensible architecture Publication
Feb 10, 2025 - Modern defensible architecture is the first step in Australian Signals Directorate (ASD)’s Australian Cyber Security Centre (ACSC)’s push to ensure that secure architecture and design are being considered and applied by organisations in their cyber security and resilience planning.
Geo-blocking in context: Realities, risks and recommendations Publication
May 19, 2025 - This guidance is intended for decision makers and cybersecurity practitioners. It highlights what to be aware of when identifying the source of a threat and the potential implications of geo-blocking in a broader cybersecurity strategy.
Cyber security incident response planning: Executive guidance Publication
Dec 12, 2024 - The Australian Signals Directorate (ASD) is responsible for monitoring and responding to cyber threats targeting Australian interests. Reporting cyber security incidents to ASD ensures that timely assistance can be provided, if required. This may be in the form of investigations or remediation advice.
Engaging with artificial intelligence Publication
Jan 24, 2024 - The purpose of this paper is to provide organisations with guidance on how to use artificial intelligence (AI) systems securely. The paper summarises some important threats related to AI systems and includes cybersecurity mitigation strategies to aid organisations in engaging with AI while managing risk. It provides mitigations to assist both organisations that maintain their own AI systems and organisations that use third-party AI systems.
Small business hub
Sep 30, 2025 - How to protect your small business from common cyber threats.
Advisory 2020-004: Remote code execution vulnerability being actively exploited in vulnerable versions of Telerik UI by sophisticated actors Advisory
May 22, 2020 - This advisory is focused around the targeting of CVE-2019-18935 but has significant overlap to the previously released ACSC 2019-126 advisory.
Report a vulnerability Service
Report vulnerabilities that are not publicly known, through the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) coordinated vulnerability disclosure service.
National cyber security exercises for Australia’s electricity industry News
Apr 30, 2020 - In November 2019, the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) coordinated a national cyber security exercise series in partnership with Australia’s electricity industry and government agencies.
Disclaimer
Jan 8, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) publishes this website to distribute information to the public and government ICT security professionals. We regularly review and update the information provided.
COVID-19 scam messages Advisory
Mar 16, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of a COVID-19 themed scam being distributed via text message.
Small business cloud security guides
Apr 2, 2024 - ASD's ACSC has released a series of guides designed to help small businesses secure their cloud environment.
Cloud shared responsibility model: Executive guidance Publication
Oct 20, 2025 - This publication is for executives with cyber security responsibilities in government entities, critical infrastructure and large organisations that use or plan to use a cloud service. This guidance aims to strengthen your understanding of the shared responsibility model (SRM), and potential impacts to your cyber security posture and your governance obligations.
AI data security Publication
May 23, 2025 - This publication provides essential data security guidance for organisations that develop and/or use AI systems, including businesses, government and critical infrastructure. It highlights the importance of data security in ensuring the accuracy and integrity of AI outcomes, and presents an in-depth examination of 3 areas of data security risks in AI systems: data supply chain, maliciously modified (poisoned) data, and data drift.
