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Protect yourself from ransomware   Guidance

Feb 12, 2025 - A ransomware attack could block you from accessing your device or the information on it. Take some time to consider how a ransomware attack might affect you.

Report and recover from business email compromise   Guidance

Jul 14, 2023 - Step-by-step guidance on how to respond to and recover from email compromise and impersonation attempts.

Joint Report on Publicly Available Hacking Tools   Reports and statistics

Oct 12, 2018 - This report is a collaborative research effort by the cyber security authorities of five nations: Australia, Canada, New Zealand, the UK and USA. It highlights the use of five publicly available tools, observed in recent cyber incidents around the world.

Microsoft Releases Security Updates for Microsoft Edge Browser   Alert

Jun 30, 2021 - On June 24 2021, Microsoft released updates for their Edge Browser addressing two vulnerabilities that an attacker could exploit to inject and execute malicious code.

Email security  

Jul 29, 2024 - Protect yourself, your employees and business from an email security incident before it's too late.

Critical vulnerability discovered in HTTP.SYS in Microsoft Windows   Alert

May 13, 2021 - A remote code execution vulnerability could enable a malicious cyber actor to compromise vulnerable Microsoft Windows hosts. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) strongly recommends applying available patches.

Reports and statistics  

Nov 3, 2022 - Find the latest cyber security reports and statistics

2020-006 Detecting and mitigating exploitation of vulnerability in Microsoft Internet Information Services   Advisory

May 22, 2020 - This advisory provides indicators of the activity the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has observed and details proactive advice on detecting and mitigating potential exploitation of this vulnerability in Microsoft Internet Information Services.

Cryptomining   Threat

Jun 23, 2020 - Cryptocurrency mining (cryptomining) uses the processing power of computers to solve complex mathematical problems and verify cybercurrency transactions. The miners are then rewarded with a small amount of cybercurrency.

Vulnerability in Fortinet’s FortiManager   Alert

Oct 24, 2024 - The ASD’s ACSC is aware of a vulnerability affecting all versions of Fortinet's FortiManager device that enables an unauthorised actor access to the FortiManager console (CVE-2024-47575). FortiManager devices provide centralised management of Fortinet devices from a single console.

Critical vulnerabilities in Citrix Gateway and Application Delivery Controller (ADC) devices   Alert

Dec 14, 2022 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) is aware of a critical vulnerability affecting many versions of Citrix Gateway and ADC. All Australian operators should check for indicators of compromise and install the latest updated versions.

Remote code execution vulnerability present in vm2 sandbox   Alert

Oct 11, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a remote code execution vulnerability in vm2 sandbox versions prior to 3.9.11. Affected Australian organisations should apply the available patch immediately.

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.

Critical vulnerabilities in multiple Fortinet products - FortiCloud SSO Login Authentication Bypass   Alert

Dec 10, 2025 - Critical vulnerabilities in Multiple Fortinet Products - FortiCloud SSO Login Authentication Bypass CVE-2025-59718 & CVE-2025-59719. ASD’s ACSC recommends organisations update affected products to the latest versions and follow the advice detailed in the Fortinet Advisory.

Critical vulnerability in Microsoft Windows Server Update Service (WSUS)   Alert

Oct 25, 2025 - Critical vulnerability impacting Microsoft Windows Server Update Service – CVE-2025-59287. ASD’s ACSC recommends organisations update affected products to the latest versions and follow the advice detailed in the Microsoft Security Update guide.

Russian FSB cyber actor Star Blizzard continues worldwide spear-phishing campaigns   Advisory

Dec 8, 2023 - The Russia-based actor is targeting organisations and individuals in the UK and other geographical areas of interest.

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.

New joint advisory on Russian military cyber tactics released   News

Sep 6, 2024 - Russian military cyber tactics, techniques and procedures targeting global critical infrastructure exposed in new joint advisory.

Exploitation of Microsoft Office vulnerability: Follina   Alert

Jun 15, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of active exploitation of the Follina zero-day vulnerability in the Microsoft Support Diagnostic Tool (CVE-2022-30190). Affected Australian organisations should take appropriate action.

Critical severity vulnerability in Fortinet FortiOS SSL-VPN   Alert

Dec 13, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a heap-based buffer overflow vulnerability in FortiOS SSL-VPN. All Australian organisations should apply the available patch immediately.