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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.

Identifying and Mitigating Living Off the Land Techniques   Advisory

Feb 8, 2024 - This Guide, authored by the U.S. Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), and the following agencies (hereafter referred to as the authoring agencies), provides information on common living off the land (LOTL) techniques and common gaps in cyber defense capabilities.

Are you protected against ‘fast flux’?   News

Apr 4, 2025 - Bulletproof Hosting Providers are using ‘fast flux’ to cycle quickly through bots and DNS records to bypass detection by network defenders and law enforcement agencies.

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.

Critical vulnerability in Pulse/Ivanti Connect Secure, Policy Secure and Neurons for ZTA gateways (CVE-2025-22457)   Alert

Apr 4, 2025 - Ivanti have released information regarding active exploitation of a critical vulnerability in Ivanti Connect Secure, Policy Secure and Neurons for ZTA gateways (CVE-2025-22457). ASD’s ACSC recommends customers follow the advice contained in Ivanti’s Security Advisory and assess their environments for malicious activity.

2023-03: ASD's ACSC Ransomware Profile – Lockbit 3.0   Advisory

Jun 15, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of Lockbit 3.0 which is the newest version of Lockbit ransomware. It is used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Once gaining access to a victim’s environment, cybercriminals use this ransomware for similar purposes as other variants such as encrypting their data, and extorting a ransom to return access to the sensitive files.

Guidelines for communications infrastructure   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on communications infrastructure.

Enhanced visibility and hardening guidance for communications infrastructure   Advisory

Dec 4, 2024 - This guide provides network engineers and defenders of communications infrastructure with best practices to strengthen their visibility and harden their network devices against successful exploitation carried out by PRC-affiliated and other malicious cyber actors.

2023-01: ASD's ACSC Ransomware Profile - Royal   Advisory

Jan 24, 2023 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) is aware of a ransomware variant called Royal, which is being used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Once gaining access to a victim’s environment, cybercriminals use this ransomware for similar purposes to other variants such as encrypting their data and extorting a ransom to return access to the sensitive files.

Mitigation strategies for edge devices: Executive guidance   Publication

Feb 4, 2025 - This publication provides a high-level summary of ASD’s existing guidance to manage and secure edge devices effectively. It is intended for executives in large organisations and critical infrastructure providers that are responsible for the deployment, operation, security, and maintenance of enterprise networks. ASD is soon to release a comprehensive technical publication on mitigation strategies for edge devices for practitioners.

Fundamentals of Cross Domain Solutions   Publication

Oct 6, 2021 - This publication introduces technical and non-technical audiences to cross domain security principles for securely connecting security domains.

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.

Patching applications and operating systems   Publication

Nov 27, 2023 - Applying patches to applications and operating systems is critical to keeping systems secure. Patching forms part of the Essential Eight from the Strategies to mitigate cybersecurity incidents.

2019-126: Vulnerable version of Telerik UI being actively exploited by APT actor   Alert

May 22, 2020 - The Australian Cyber Security Centre (ACSC) has become aware that Advanced Persistent Threat (APT) actors have been scanning for and attempting exploitation against unpatched versions of Telerik UI for ASP.NET AJAX using publicly available exploits. Successful exploitation could allow an attacker to upload files to the vulnerable server to facilitate further compromise.

Secure by Design foundations   Publication

Jul 30, 2024 - ASD’s ACSC's Secure by Design foundations represent a first step in a new approach to assist technology manufacturers and customers to adopt Secure by Design. While the foundations are primarily designed to foster discussion within technology manufacturers on how to best approach Secure by Design, they contain relevant information and actions for technology customers.

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.

Supporting Australian organisations through a cybersecurity incident   Guidance

Dec 18, 2024 - Malicious cyber activity continues to pose a significant risk to Australia’s security and prosperity. Australian organisations that have been, or may be impacted by a cybersecurity incident, are encouraged to reach out to the Australian Signal’s Directorate (ASD) to seek  technical incident response advice and assistance.

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.

Cybersecurity Best Practices for Smart Cities   Publication

Apr 20, 2023 - This guidance is the result of a collaborative effort from the United States Cybersecurity and Infrastructure Security Agency (CISA), the United States National Security Agency (NSA), the United States Federal Bureau of Investigation (FBI), the United Kingdom National Cyber Security Centre (NCSC-UK), the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), the Canadian Centre for Cyber Security (CCCS), and the New Zealand National Cyber Security Centre (NCSC-NZ).

PRC State-Sponsored Cyber Activity   Advisory

Mar 20, 2024 - This fact sheet provides an overview for executive leaders on the urgent risk posed by People’s Republic of
China (PRC) state-sponsored cyber actors known as "Volt Typhoon."

Gateway security guidance package: Gateway operations and management   Publication

Jul 29, 2022 - This guidance is one part of a package of documents that forms the Australian Signals Directorate (ASD)’s Gateway security guidance package written for audiences responsible for the operation and management of gateways.

Secure your website   Guidance

Jul 29, 2024 - Small business account for over 95% of all businesses in Australia and 72% of them have a website. However, in a world in which websites are increasingly being targeted by cyber criminals, only 36% check for updates every week. For those small businesses with a website, or that are considering one, these three quick wins will help you protect your money, data and reputation.

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.

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.

Malicious insiders   Threat

Jun 23, 2020 - Malicious insiders can be employees, former employees, contractors or business associates who have legitimate access to your systems and data, but use that access to destroy data, steal data or sabotage your systems. It does not include well-meaning staff who accidentally put your cybersecurity at risk or spill data.

ASD's ACSC social media community  

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Russian Military Cyber Actors Target U.S. and Global Critical Infrastructure   Advisory

Sep 6, 2024 - The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and National Security Agency (NSA) assess that cyber actors affiliated with the Russian General Staff Main Intelligence Directorate (GRU) 161st Specialist Training Center (Unit 29155) are responsible for computer network operations against global targets for the purposes of espionage, sabotage, and reputational harm since at least 2020.

2020-013 Ransomware targeting Australian aged care and healthcare sectors   Advisory

Aug 2, 2020 - Recently there has been a significant increase in healthcare or COVID-19 themed malicious cyber activity, including targeting of the aged care and healthcare sectors by financially motivated cyber criminals using the ‘Maze’ ransomware.

The ASD's ACSC On-Call 24/7   News

Nov 25, 2021 - All Australians now have greater access to cyber security help and advice through the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) enhanced national Cyber Security Hotline - 1300 CYBER1.

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.