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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.

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.

Archived reports and statistics  

Feb 13, 2025 - Search archived report and statistics

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.

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.

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.

Information stealer malware   Guidance

Jul 15, 2025 - Information stealer malware is a type of malware designed to steal sensitive data from devices. This can include user credentials, browser data and more.

Australian Signals Directorate’s Cyber Security Partnership Program   Program

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.

Information stealers are on the rise, are you at risk?   News

Dec 8, 2025 - Make sure you know how to avoid information stealer malware and get tips for protecting your information.

Cyber security 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).

Microsoft Exchange Server security best practices   Publication

Oct 31, 2025 - This paper—authored by the National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), and Canadian Centre for Cyber Security (Cyber Centre)—provides security best practices for administrators on hardening on-premises (on-prem) Exchange.

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 cyber security at risk or spill data.

Exploitation of existing Fortinet Vulnerabilities    Alert

Apr 11, 2025 - Fortinet has released information regarding exploitation of previously known vulnerabilities affecting Fortinet devices.
ASD’s ACSC recommends customers follow the advice contained in Fortinet’s advisory page.

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.

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.

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.

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."

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.

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.