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People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection Advisory
May 25, 2023 - The People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection joint advisory provides examples of the cyber actor’s commands, along with detection signatures to aid network defenders in hunting for this activity.
Best practices for event logging and threat detection News
Aug 22, 2024 - Today we have released new event logging guidance, alongside our international partners, that defines the baseline for logging best practices to mitigate malicious cyber threats.
Security configuration guide: Samsung Galaxy S10, S20 and Note 20 devices Publication
Oct 6, 2021 - ASD has developed this guide to assist Australian’s to understand risks when deploying Samsung Galaxy and Samsung Note devices and the security requirements that need to be met to allow them to handle classified data.
Foundations for modern defensible architecture Publication
Oct 23, 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.
Multiple key vulnerabilities identified in Microsoft products Alert
Oct 13, 2021 - Multiple key vulnerabilities were identified in Microsoft’s 12 October 2021 patch release. While all vulnerabilities addressed in this release are important to mitigate the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) wishes to highlight several vulnerabilities for priority consideration.
New guidance for organisations to strengthen their network infrastructure News
Oct 15, 2025 - This guidance supports executive and technical staff of medium-to-large organisations and government entities to strengthen their organisation’s network infrastructure.
Essential Eight Assessment Guidance Package News
Nov 23, 2022 - The Australian Signals Directorate has published updated guidance to help ensure consistent Essential Eight assessment across government and industry.
Essential Eight explained Publication
Nov 27, 2023 - This publication provides an overview of the Essential Eight.
Cyber security guidelines
Jun 13, 2024 - Practical guidance on how an organisation can protect their information technology and operational technology systems, applications and data from cyber threats.
Cloud computing security for tenants Publication
Jan 18, 2024 - This publication is designed to assist an organisation’s cyber security team, cloud architects and business representatives to jointly perform a risk assessment and use cloud services securely.
Gateway security guidance package: Executive guidance Publication
Jul 29, 2025 - The purpose of this guidance is to inform decision-makers at the executive level of their responsibilities, the appropriate considerations needed to make informed risk-based decisions, and to meet policy obligations when leading the design or consumption of their organisation’s gateway services.
2022-004: ASD's ACSC Ransomware Profile – ALPHV (aka BlackCat) Advisory
Apr 14, 2022 - ALPHV (aka BlackCat, Noberus) is a ransomware variant first observed in late 2021, used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia.
End of support for Microsoft Windows and Microsoft Windows server Publication
Sep 4, 2025 - Support for Microsoft Windows and Microsoft Windows Server users following the expiration of the specified servicing timeline.
Protecting against business email compromise Publication
Oct 6, 2021 - Business email compromise is when malicious actors use email to abuse trust in business processes to scam organisations out of money or goods. Malicious actors can impersonate business representatives using similar names, domains or fraudulent logos as a legitimate organisation or by using compromised email accounts and pretending to be a trusted co-worker.
Implementing certificates, TLS, HTTPS and opportunistic TLS Publication
Oct 6, 2021 - Transport Layer Security (TLS) is a widely used encryption protocol which enables parties to communicate securely over the internet. Through the use of certificates and Public Key Infrastructure (PKI), parties can identify each other through a trusted intermediary and establish encrypted tunnels for the secure transfer of information.
Are your organisation’s edge devices secure? News
Feb 5, 2025 - New publication series for executives and IT practitioners on how to secure edge devices.
2023 top routinely exploited vulnerabilities Advisory
Nov 13, 2024 - This advisory provides details, collected and compiled by the authoring agencies, on the Common Vulnerabilities and Exposures (CVEs) routinely and frequently exploited by malicious cyber actors in 2023 and their associated Common Weakness Enumerations (CWEs). Malicious cyber actors exploited more zero-day vulnerabilities to compromise enterprise networks in 2023 compared to 2022, allowing them to conduct operations against high priority targets. The authoring agencies strongly encourage vendors, designers, developers, and end-user organizations to implement the following recommendations, and those found within the Mitigations section of this advisory, to reduce the risk of compromise by malicious cyber actors.
Gateway security guidance package: Overview Publication
Jul 29, 2025 - This page provides an overview of ASD’s Gateway security guidance package.
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.
Cloud assessment and authorisation Publication
Jan 18, 2024 - This publication is co-designed with industry to support the secure adoption of cloud services across government and industry.