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Restricting administrative privileges   Publication

Nov 27, 2023 - Learn how to restrict the use of administrative privileges. Restricting administrative privileges forms part of the Essential Eight from the Strategies to mitigate cybersecurity incidents.

U.S., U.K., and Australia Issue Joint Cybersecurity Advisory   News

Jul 28, 2021 - Cyber Agencies Share Top Routinely Exploited Vulnerabilities

Technical example: Configure macro settings   Publication

Dec 16, 2022 - Configuring macro settings protects an organisation’s systems from malicious macros. Macros are powerful tools. They were introduced to improve productivity however their functionality can also be used by cyber criminals to compromise a user’s system.

Australian organisations encouraged to urgently adopt an enhanced cyber security posture   Alert

Mar 28, 2022 - Australian organisations are encouraged to urgently adopt an enhanced cyber security posture. Organisations should act now and follow ACSC’s advice to improve their cyber security resilience in light of the heightened threat environment.

Gootkit Loader continues to be used on multiple Australian networks   Advisory

Dec 23, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) continues to observe instances of Gootkit JavaScript (JS) Loaders on multiple Australian networks in 2022. Open source reporting also indicates continued Gootkit activity.

"Bulletproof" hosting providers   Publication

Jan 22, 2025 - Bulletproof hosting (BPH) providers lease cybercriminals a virtual and/or physical infrastructure from which to operate. BPH providers are a specific class of internet infrastructure service that enables malicious actors (including cybercriminals) to host illicit content and run operations on the internet.

Citrix Products NetScaler ADC and NetScaler Gateway Vulnerabilities   Alert

Nov 29, 2023 - A malicious actor can exploit the vulnerability to execute code remotely without authentication. Organisations using Citrix products NetScaler ADC and NetScaler Gateway, possibly including Government and medium to large organisations. Ensure the latest release of NetScaler ADC and NetScaler Gateway have been installed.

Annual Cyber Threat Report 2023-2024   Reports and statistics

Nov 20, 2024 - ASD’s Annual Cyber Threat Report 2023–24 provides an overview of the key cyber threats impacting Australia, how ASD’s ACSC is responding and cyber security advice for Australian individuals, organisations and government to protect themselves online.

Principles of operational technology cyber security   Publication

Oct 2, 2024 - Critical infrastructure organisations provide vital services, including supplying clean water, energy, and transportation, to the public. These organisations rely on operational technology (OT) to control and manage the physical equipment and processes that provide these critical services. As such, the continuity of vital services relies on critical infrastructure organisations ensuring the cybersecurity and safety of their OT.

Technical example: Multi-factor authentication   Publication

Dec 16, 2022 - Multi-factor authentication (MFA) makes it harder for adversaries to use compromised user credentials to access an organisation’s systems. It is one of the most important cybersecurity measures an organisation can implement.

Foundations for modern defensible architecture   Publication

Feb 10, 2025 - The Foundations represent the first step to help organisations adopt a ‘modern defensible architecture’ approach, which will enable them to evolve alongside the threat landscape.

Security tips for remote working   Guidance

Jul 29, 2024 - As an employee, you may be more at risk when working away from the office. Learn how to stay secure while working from home or remotely.

Critical remote code execution vulnerability found in the Log4j library   Alert

Dec 21, 2021 - A vulnerability (CVE-2021-44228) exists in certain versions of the Log4j library. A malicious cyber actor could exploit this vulnerability to execute arbitrary code. Australian organisations should apply latest patches immediately where Log4j is known to be used.

Managing the risks of legacy IT: Executive guidance   Publication

Jun 12, 2024 - This publication provides high-level and strategic guidance for an organisation’s executive seeking to manage the risks of legacy IT.

Password managers   Guidance

May 12, 2025 - Learn how to create and store passwords in a secure location for your important accounts.

Travelling with mobile devices   Publication

Mar 26, 2024 - Learn how to keep mobile devices secure when travelling. This guidance provides advice from both an individual and organisational perspective.

Content credentials: Strengthening multimedia integrity in the generative AI era   Publication

Jan 30, 2025 - This cybersecurity information sheet discusses how Content Credentials (especially Durable ones) can be valuable to protect the provenance of media, raises awareness of the state of this solution, provides recommended practices to ensure the preservation of provenance, and discusses the importance of widespread adoption across the information ecosystem.

Report and recover from a data breach   Guidance

Jul 14, 2023 - A data breach occurs when sensitive or personal information is accessed, disclosed or exposed to unauthorised people.

2021 Top Routinely Exploited Vulnerabilities   Advisory

Apr 28, 2022 - This advisory provides details on the top 15 Common Vulnerabilities and Exposures (CVEs) routinely exploited by malicious cyber actors in 2021, as well as other CVEs frequently exploited.

2021-006: ASD's ACSC Ransomware Profile - Lockbit 2.0   Advisory

Aug 5, 2021 - The LockBit ransomware restricts access to corporate files and systems by encrypting them into a locked and unusable format. Victims receive instructions on how to engage with the offenders after encryption. LockBit affiliates have successfully deployed ransomware on corporate systems in a variety of countries and sectors, including Australia, where the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of numerous incidents since 2020. LockBit affiliates are known to implement the ‘double extortion’ technique by uploading stolen and sensitive victim information to their dark web site ‘LockBit 2.0’, and threatening to sell and/or release this information if their ransom demands are not met.

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.

Deploying AI systems securely   Publication

Apr 16, 2024 - AI security is a rapidly evolving area of research. As agencies, industry, and academia discover potential weaknesses in AI technology and techniques to exploit them, organizations will need to update their AI systems to address the changing risks, in addition to applying traditional IT best practices to AI systems.

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.

#StopRansomware: LockBit 3.0 Ransomware Affiliates Exploit CVE 2023-4966 Citrix Bleed Vulnerability   Advisory

Nov 29, 2023 - This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.

Secure mobility  

Feb 4, 2021 - This page lists publications on mobile device management and usage.

Mitigating Log4Shell and Other Log4j-Related Vulnerabilities   Advisory

Dec 23, 2021 - Malicious cyber actors are actively scanning networks to potentially exploit Log4Shell, CVE-2021-45046, and CVE-2021-45105 in vulnerable systems. According to public reporting, Log4Shell and CVE-2021-45046 are being actively exploited. This joint Cybersecurity Advisory is to provide mitigation guidance on addressing vulnerabilities.

Cryptomining   Threat

Jun 23, 2020 - Cryptocurrency mining (cryptomining) uses the processing power of computers to solve complex mathematical problems and verify cybercurrency transactions. The miners are then rewarded with a small amount of cybercurrency.

Web conferencing security   Publication

Oct 6, 2021 - Web conferencing tools are essential for meeting with colleagues and clients online. This guide provides tips on how to choose a secure web conference provider, and what risks to be aware of.

Threat Actors Exploit Multiple Vulnerabilities in Ivanti Connect Secure and Policy Secure Gateways   Advisory

Feb 28, 2024 - The Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), Multi-State Information Sharing & Analysis Center (MS-ISAC), Australian Signals Directorate’s Australian Cyber Security Center (ASD’s ACSC), and the UK’s National Cyber Security Centre (NCSC), are releasing this joint Cybersecurity Advisory (CSA) in response to the active exploitation of CVE-2023-46805, CVE-2024-21887, CVE-2024-22024, and CVE-2024-21893—multiple vulnerabilities affecting Ivanti Connect Secure and Ivanti Policy Secure gateways.

Restricting Microsoft Office macros   Publication

Nov 27, 2023 - This publication has been developed to discuss approaches that can be applied by organisations to secure systems against malicious Microsoft Office macros while balancing both their business and security requirements.