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Defending against the malicious use of the Tor network   Publication

Oct 6, 2021 - The Tor network is a system that conceals a user’s IP address. It allows anonymous – and often malicious – communication. This guidance shares advice on how to detect and prevent traffic from the Tor network.

Creating and maintaining a definitive view of your operational technology architecture   Publication

Oct 28, 2025 - How organisations who deploy or operate operational technology systems should build, maintain and store their systems understanding.

Secure by Demand   Publication

Jan 14, 2025 - This Secure by Demand guide, authored by CISA with contributions from the following partners, describes how OT owners and operators should integrate security into their procurement process when purchasing industrial automation and control systems as well as other OT products.

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.

IRAP training partnership   News

Feb 23, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is partnering with organisations in South Australia and the ACT to deliver cyber security assessment training services for Australian business and organisations.

Planning for critical vulnerabilities: What the board of directors needs to know   Publication

Dec 14, 2023 - This publication provides information on why it is important that the board of directors is aware of and plan for critical vulnerabilities that have the potential to cause major cybersecurity incidents.

Engaging with artificial intelligence   Publication

Jan 24, 2024 - The purpose of this paper is to provide organisations with guidance on how to use artificial intelligence (AI) systems securely. The paper summarises some important threats related to AI systems and includes cybersecurity mitigation strategies to aid organisations in engaging with AI while managing risk. It provides mitigations to assist both organisations that maintain their own AI systems and organisations that use third-party AI systems.

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.

Guidelines for personnel security   Advice

Dec 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on personnel security.

Best practices for event logging and threat detection   Publication

Aug 22, 2024 - This publication defines a baseline for event logging best practices to mitigate cyber threats.

The Commonwealth Cyber Security Posture in 2023   Reports and statistics

Nov 16, 2023 - The Commonwealth Cyber Security Posture in 2023 informs Parliament on the implementation of cyber security measures across the Australian Government for the 2022–23 financial year. According to the Flipchart of PGPA Act Commonwealth entities and companies, as of 30 June 2023 the Australian Government comprised 100 non-corporate Commonwealth entities (NCEs), 72 corporate Commonwealth entities (CCEs) and 17 Commonwealth companies (CCs); totalling 189 Australian government entities.

Exploitation of Unitronics Programmable Logic Controllers (PLCs)   Alert

Dec 5, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is concerned about global exploitation of Programmable Logic Controllers (PLC) and is aware of reports of compromise of these devices in Australia. These devices are present in a number of critical sectors such as water, energy, fuel and healthcare.

Information Security Registered Assessor Program (IRAP)   News

Dec 15, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is further enhancing cyber security assessment and training, improving cyber skills, and creating new cyber careers for Australians through the Information Security Registered Assessor Program (IRAP).

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.

Critical Unauthenticated Remote Code Execution vulnerability in n8n workflow automation platform   Alert

Jan 8, 2026 - A critical unauthenticated Remote Code Execution (RCE) vulnerability affecting n8n workflow automation platform has been observed. The critical vulnerability, tracked as CVE-2026-21858, allows unauthenticated threat actors to access sensitive files on the underlying server through execution of certain form-based workflows leading to RCE.

This vulnerability is assessed as CVSS 10.0.

Secure your Wi-Fi and router   Guidance

Oct 29, 2024 - How to make your software, devices and networks harder to access and more resilient to attack.

Malicious email mitigation strategies   Publication

Oct 6, 2021 - Socially engineered emails containing malicious attachments and embedded links are routinely used in targeted cyber intrusions against organisations. This publication has been developed to provide mitigation strategies for the security risks posed by these malicious emails.

Cloud computing security for cloud service providers   Publication

Jan 18, 2024 - This publication is designed to assist cloud service providers (CSPs) in offering secure cloud services. It can also assist assessors in validating the security posture of a cloud service, which is often verified through an Infosec Registered Assessors Program (IRAP) assessment of the CSP services.

Threat update: COVID-19 malicious cyber activity 20 April 2020   Advisory

Apr 20, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) continues to receive reports from individuals, businesses and government departments about a range of different COVID-19 themed scams, online frauds and phishing campaigns. This threat update is about raising awareness of the evolving nature of COVID-19 related malicious cyber activity impacting Australians.

Understanding Ransomware Threat Actors: LockBit   Advisory

May 8, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) alongside international partners have released a joint advisory on the ransomware variant LockBit. It functions as an affiliate-based Ransomware-as-a-Service (RaaS) model where affiliates are recruited to conduct ransomware attacks using LockBit ransomware tools and infrastructure.