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Recovering compromised bank accounts and online payment accounts   Guidance

Nov 10, 2023 - Bank accounts are among the most important accounts to us and the most prized accounts to cybercriminals.

Cyber security incident response planning: Executive guidance   Publication

Dec 12, 2024 - The Australian Signals Directorate (ASD) is responsible for monitoring and responding to cyber threats targeting Australian interests. Reporting cyber security incidents to ASD ensures that timely assistance can be provided, if required. This may be in the form of investigations or remediation advice.

Building stronger supply chains through collaboration: A fireside chat   News

Oct 29, 2025 - Find out how to take action on your supply chain and third party risk by watching our fireside chat with industry cyber professionals.

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.

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.

Mitigations for network defence   Publication

Oct 15, 2025 - This guidance provides actions for both executives and technical staff to strengthen their organisation’s network infrastructure.

Preventing Web Application Access Control Abuse   Advisory

Jul 28, 2023 - The Australian Cyber Security Centre (ACSC), U.S. Cybersecurity and Infrastructure Security Agency (CISA), and U.S. National Security Agency (NSA) are releasing this joint Cybersecurity Advisory to warn vendors, designers, and developers of web applications and organizations using web applications about insecure direct object reference (IDOR) vulnerabilities.

Educational pack for seniors   Guidance

Jun 23, 2023 - This educational pack provides engaging content to help seniors learn how to stay cyber secure. Practical steps and topics range from a basic to advanced level.

Hunting Russian Intelligence “Snake” Malware   Advisory

May 10, 2023 - This Cybersecurity Advisory (CSA) provides background on Snake’s attribution to the FSB and detailed technical descriptions of the implant’s host architecture and network communications.

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 cyber security incidents.

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.

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.

Convoluted layers: An artificial intelligence primer   Publication

May 21, 2025 - Rapid advances in artificial intelligence (AI), along with public releases of AI products, have prompted governments, businesses and criminals to accelerate efforts to incorporate this new technology into their operations. This advice provides definitions for some of the most commonly encountered AI terms in cyber security and a brief typology of cyber threats that will arise from AI.

Recovering a compromised email account   Guidance

Nov 10, 2023 - Email accounts are valuable targets for cybercriminals. Not just because they store sensitive messages, but also because they can be used to impersonate the account owner, to spread scams, and to perform password resets.

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.

Managing the risks of legacy IT: Executive guidance   Publication

Jun 12, 2024 - This publication provides high-level and strategic guidance for an organisation’s executive seeking to manage the risks of legacy IT.

Become an ASD partner   Hub item

Register your interest in the Australian Signals Directorate’s Cyber Security Partnership Program and provide information about yourself and your organisation.

Russian State-Sponsored and Criminal Cyber Threats to Critical Infrastructure   Advisory

May 17, 2022 - The cybersecurity authorities of the United States, Australia, Canada, New Zealand, and the United Kingdom are releasing this joint Cybersecurity Advisory (CSA). The intent of this joint CSA is to warn organizations that Russia’s invasion of Ukraine has altered the geopolitical balance in ways that could expose organizations both within and beyond the region to increased malicious cyber activity. This activity may occur as a response to the unprecedented economic costs imposed on Russia as well as materiel support provided by the United States and U.S. allies and partners.

Investing in modern defensible architecture   Publication

Oct 23, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and international partners present this guidance to help organisations develop an MDA investment roadmap based on their organisational strategy, business and security objectives, risk profile and threat context.

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.