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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.

Quantum technology primer: Computing   Publication

Feb 19, 2026 - Explore quantum computing, the threat it poses to current cryptography, and how organisations can reduce risks to their data and systems.

Guidelines for system hardening   Advice

Mar 17, 2026 - This chapter of the Information security manual (ISM) provides guidance on system hardening.

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.

Manic Menagerie Investigation Report   Reports and statistics

Jan 29, 2019 - This report details technical findings and mitigation advice related to the extensive compromise of at least eight Australian web hosting providers investigated by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) in May 2018.

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.

PRC state-sponsored cyber group APT40’s expanding tradecraft and tactics    News

Jul 9, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has released a new joint advisory with international partners on the People’s Republic of China (PRC) Ministry of State Security (MSS) tradecraft in action.

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.

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.

Multi-factor authentication for stronger cyber protection   News

Feb 25, 2021 - Australians are being urged to strengthen proof of identity protections to help stop cybercriminals gaining unauthorised access to online information and accounts.

Hardening Microsoft Windows 11 workstations   Publication

Jan 23, 2026 - This publication provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 11. While this publication refers to workstations, most recommendations are equally applicable to servers (with the exception of Domain Controllers) using Microsoft Windows Server. Security features discussed in this publication, along with the names and locations of Group Policy settings, are taken from Microsoft Windows 11 version 25H2.

Increase in denial-of-service (DoS) attacks against Australian organisations   Advisory

Mar 17, 2025 - ASD's ACSC is aware of an increase in denial-of-service (DoS) attacks, where malicious actors flood websites with internet traffic, making it difficult for legitimate users to access them.

Join the Cyber Threat Intelligence Sharing service through Sentinel or Splunk Enterprise Security   News

Oct 2, 2025 - The Australian Signals Directorate’s (ASD’s) Cyber Threat Intelligence Sharing (CTIS) is a two-way sharing platform that enables government and industry partners to receive and share information about malicious cyber activity at machine speed.

Back to school with cyber secure devices   News

Feb 4, 2022 - As children return to school, Australian parents are urged to make devices like mobile phones and laptop computers more cyber secure and to teach their children about cyber security, with 2022 set to be another year of hybrid learning for most families.

Using the Information security manual   Advice

Mar 17, 2026 - This chapter of the Information security manual (ISM) provides guidance on using the ISM.

Summary of Tactics, Techniques and Procedures Used to Target Australian Networks   Advisory

May 20, 2020 - This advisory provides information on methods to detect many of the TTPs listed. Partners are strongly encouraged to review their environments for the presence of the exploited vulnerabilities and provided TTPs.

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.

Security configuration guide: Viasat Mobile Dynamic Defense   Publication

Oct 6, 2021 - ASD has developed this guide to assist Australian’s to understand risks when deploying Viasat MDD devices and the security requirements that need to be met to allow them to handle classified data.

MSP Investigation Report   Reports and statistics

Dec 21, 2018 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) investigation report details the theft of commercial secrets, data and information from the Australian arm of a multinational construction services company via their Managed Service Provider.

Cyber security terminology   Advice

Mar 17, 2026 - This chapter of the Information security manual (ISM) provides guidance on cyber security terminology.