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Advice for Malicious Cyber Activity by Iran   News

Sep 15, 2022 - Australian organisations are urged to be alert to continued malicious cyber activity conducted by Advanced Persistent Threat (APT) actors, assessed to be affiliated with the Iranian Government’s Islamic Revolutionary Guard Corps (IRGC).

Vulnerability disclosure programs explained   Publication

Dec 12, 2024 - A vulnerability disclosure program (VDP) is a collection of processes and procedures designed to identify, verify, resolve and report on vulnerabilities disclosed by people who may be internal or external to organisations. The importance of developing, implementing and maintaining a well thought-out VDP cannot be underestimated. It is an integral part of professional organisations’ business operations.

Small business  

Jun 15, 2023 - Basic steps to protect your business and staff from cyberthreats. Our guide has information and resources to help you and your staff prepare for cyberattacks.

ASD's ACSC/NCSC collaboration to strengthen cyber security posture   News

Nov 4, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and the UK’s National Cyber Security Centre (NCSC) are committed to improving our respective nation’s cyber security posture and protecting our networks from cyber threats.

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 cybersecurity and a brief typology of cyber threats that will arise from AI.

Multiple vulnerabilities affecting Cisco ASA 5500-X Series devices   Alert

Sep 26, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of multiple vulnerabilities impacting Cisco Secure Firewall Adaptive Security Appliance (ASA) 5500-X Series models that are running Cisco ASA Software or Cisco Secure Firewall Threat Defense (FTD) Software.

Cisco reports active exploitation of these vulnerabilities globally. ASD’s ACSC has also observed targeting in Australia.

Personal cyber security: Next steps guide   Guidance

Jun 16, 2023 - The second of three cyber security guides in the personal cyber security series is designed to help everyday Australians understand a moderate level of cyber security and how to take action to protect themselves from cyber threats.

Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disk Encryption for Ransom Operations   Advisory

Sep 15, 2022 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) has joined with international cyber security agency partners to co-author an advisory on continued Iranian state-sponsored cyber threats. Organisations are encouraged to apply the recommended mitigations to protect themselves online.

BADBAZAAR and MOONSHINE: Spyware targeting Uyghur, Taiwanese and Tibetan groups and civil society actors   Advisory

Apr 9, 2025 - This advisory is jointly produced by government agencies from the UK, Australia, Canada, Germany, New Zealand, and the US and is supported by members of the NCSC’s Cyber League. Its purpose is to raise awareness about the growing threat that malicious cyber actors pose to individuals connected to topics including Taiwan, Tibet, Xinjiang Uyghur Autonomous Region, democracy movements and the Falun Gong.

Gateway security guidance package: Gateway operations and management   Publication

Jul 29, 2025 - This guidance is one part of a package of documents that forms the Australian Signals Directorate (ASD)’s Gateway security guidance package written for audiences responsible for the operation and management of gateways.

Supporting Australian organisations through a cyber security incident   Guidance

Oct 23, 2025 - Malicious cyber activity continues to pose a significant risk to Australia’s security and prosperity. Australian organisations that have been, or may be impacted by a cyber security incident, are encouraged to reach out to the Australian Signal’s Directorate (ASD) to seek technical incident response advice and assistance.

Scammers impersonating police to target victims for cryptocurrency/seed wallet theft   Alert

Nov 13, 2025 - The ASD’s ACSC is aware that criminals are using Australia’s national cybercrime reporting channel and impersonating police to try to scam Australians out of funds from their cryptocurrency or seed wallets.

2021-010: ASD's ACSC Ransomware Profile - Conti   Advisory

Mar 4, 2022 - Conti is a ransomware variant first observed in early 2020, used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Conti is offered as a Ransomware-as-a-Service (RaaS), enabling affiliates to utilise it as desired, provided that a percentage of the ransom payment is shared with the Conti operators as commission. This product provides information related to Conti’s background, threat activity, and mitigation advice.

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.

Personal cyber security: Advanced steps guide   Guidance

Mar 23, 2023 - The third and final cyber security guide in the personal cyber security series is designed to help everyday Australians understand an advanced level of cyber security and how to take action to protect themselves from cyber threats.

Multiple vulnerabilities present in the Spring Framework for Java   Alert

Apr 4, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of media reporting relating to multiple potential vulnerabilities, including the so-called SpringShell vulnerability, in the Java Spring framework and its execution environments. These vulnerabilities pose a threat to organisations running applications on the web which contain components using the Java Spring framework.

Detecting socially engineered messages   Publication

Oct 6, 2021 - Socially engineered messages pose a significant threat to organisations. They can have a big impact, helping malicious actors access accounts, systems or sensitive information. Learn how to spot a socially engineered message, including through email, SMS, social media or messaging apps.

2021-003: Ongoing campaign using Avaddon Ransomware   Advisory

May 8, 2021 - The Australian Cyber Security Centre (ACSC) is aware of an ongoing ransomware campaign utilising the Avaddon Ransomware malware. This campaign is actively targeting Australian organisations in a variety of sectors. This advisory provides details of Avaddon threat actors, dark web activity, targeted countries and sectors, the malware infection chain, and known Techniques, Tools, and Procedures (TTPs). If activity is identified relating to this advisory please report any findings to the ACSC.

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.

Technical example: User application hardening   Publication

Dec 16, 2022 - User application hardening protects an organisation from a range of threats including malicious websites, advertisements running malicious scripts and exploitation of vulnerabilities in unsupported software. These attacks often take legitimate application functionality and use it for malicious purposes. User application hardening makes it harder for cybercriminals to exploit vulnerabilities or at-risk functionality in your organisation’s applications.