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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.

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.

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.

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.

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.

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.

Small Business Cloud Security Guides: 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.

FortiOS & FortiProxy - Authentication bypass in Node.js websocket module vulnerability   Alert

Jan 15, 2025 - Fortinet has released information regarding an identified vulnerability in FortiOS version 7.0 and FortiProxy versions 7.0 and 7.2 instances. ASD’s ACSC recommends customers follow the advice contained in Fortinet’s notification.

Critical vulnerabilities in Ivanti Connect Secure, Ivanti Policy Secure and Ivanti Neurons for ZTA Gateways   Alert

Jan 9, 2025 - Ivanti has identified critical vulnerabilities affecting Ivanti Connect Secure, Ivanti Policy Secure and Ivanti Neurons for ZTA Gateways. Customers should update to available patched versions immediately and monitor Ivanti’s Security Advisory for further advice.

PRC State-Sponsored Cyber Activity   Advisory

Mar 20, 2024 - This fact sheet provides an overview for executive leaders on the urgent risk posed by People’s Republic of
China (PRC) state-sponsored cyber actors known as "Volt Typhoon."

Exchange server critical vulnerabilities   Alert

Apr 15, 2021 - On 2 March 2021 Microsoft released information regarding multiple exploits being used to compromise instances of Microsoft Exchange Server. Malicious actors are exploiting these vulnerabilities to compromise Microsoft Exchange servers exposed to the internet, enabling access to email accounts and to enable further compromise of the Exchange server and associated networks.

Microsoft Office Outlook Remote Code Execution Vulnerability   Alert

Feb 18, 2024 - ASD’s ACSC is aware of a vulnerability in Microsoft Office Outlook (CVE-2024-21413).
Users of Microsoft Office Outlook are strongly advised to follow the mitigation advice provided by Microsoft if they are vulnerable.

Medibank Private Cyber Security Incident   Alert

Dec 1, 2022 - ASD’s Australian Cyber Security Centre is working closely with Medibank Private following the recent incident.

Supporting Australian organisations through a cybersecurity incident   Guidance

Dec 18, 2024 - 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 cybersecurity incident, are encouraged to reach out to the Australian Signal’s Directorate (ASD) to seek  technical incident response advice and assistance.

ASD’s role in cybersecurity: For legal practitioners   Guidance

Dec 11, 2024 - During a cybersecurity incident, or suspected cybersecurity incident, our goal is to work with impacted organisations, their legal representation, and any external vendors engaged to investigate an incident on behalf of the organisation.

Guidelines for personnel security   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on personnel security.

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.

Cybersecurity incident response planning: Practitioner guidance   Publication

Dec 12, 2024 - ASD defines a cybersecurity incident as an unwanted or unexpected cybersecurity event, or a series of such events, that has either compromised business operations or has a significant probability of compromising business operations.

Phone and email scammers impersonating the ASD's ACSC   Alert

Jan 19, 2022 - The Australian government will NEVER phone you to request access to your computer, or request you to purchase cryptocurrencies or gift cards. If you receive a suspicious phone call, take the caller's details, hang up and contact the company they claim to represent via official communication channels listed on their website. Never call a number provided by the scammer.

How to manage your security when engaging a managed service provider   Publication

Oct 6, 2021 - Understand the actions organisations can take to manage the security risks posed by engaging and authorising network access for managed service providers.

Small business cybersecurity guide   Publication

Jun 16, 2023 - This guide includes basic security measures to help protect your business against common cyberthreats.

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.

Password managers   Guidance

May 12, 2025 - Learn how to create and store passwords in a secure location for your important accounts.

Managed service providers: How to manage risk to customer networks   Publication

Oct 6, 2021 - There are several mitigation strategies that managed service providers can implement to protect their own networks and manage the security risks posed to their customers’ networks.

Deploying AI Systems Securely   Publication

Apr 16, 2024 - AI security is a rapidly evolving area of research. As agencies, industry, and academia discover potential weaknesses in AI technology and techniques to exploit them, organizations will need to update their AI systems to address the changing risks, in addition to applying traditional IT best practices to AI systems.

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.

Update your devices to keep cybercriminals out   News

May 3, 2021 - Updating the software on electronic devices is one of the easiest and most important ways all Australians can defend against cybercriminals and be protected from online threats.

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.

Gateway security guidance package: Gateway technology guides   Publication

Jul 29, 2022 - This guidance is one part of a package of documents that forms the Gateway security guidance package. When designing, procuring, operating, maintaining or disposing of a gateway, it is important to consider all the documents from the Gateway security guidance package at different stages of governance, design and implementation, and not to consume this guidance in isolation.