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2020-002: Critical Vulnerabilities for Microsoft Windows, Patch Urgently   Advisory

Jan 15, 2020 - If you or your organisation uses any of the affected products, the ACSC recommends that you apply the patches urgently.

Important Vulnerabilities in Microsoft’s July 2023 Security Update   Alert

Jul 13, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is concerned about vulnerabilities disclosed in Microsoft’s July 2023 Security Update. Government, businesses and individuals should patch their Microsoft products and apply any recommended mitigations as soon as possible.

Multiple key vulnerabilities identified in Microsoft products   Alert

Oct 13, 2021 - Multiple key vulnerabilities were identified in Microsoft’s 12 October 2021 patch release. While all vulnerabilities addressed in this release are important to mitigate the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) wishes to highlight several vulnerabilities for priority consideration.

Bulletproof defense: mitigating risks from bulletproof hosting providers   Publication

Nov 20, 2025 - This document provides internet service providers (ISPs) and network defenders recommendations to mitigate potential cybercriminal activity enabled by bulletproof hosting (BPH) providers.

Vulnerability Alert – 2 new Vulnerabilities associated with Microsoft Exchange.   Alert

Oct 10, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of 2 zero day vulnerabilities associated with Microsoft Exchange Servers 2013, 2016 and 2019 (Exchange).

Consider your cyber hygiene in light of global events   News

Dec 22, 2025 - Around the world, geopolitical tensions remain complex as nations navigate diplomatic, economic, and military challenges. ASD’s ACSC recommends that organisations continue to review their current cyber security posture and maintain sufficient monitoring for cyber threats.

Don’t take BADCANDY from strangers – How your devices could be implanted and what to do about it   Advisory

Oct 31, 2025 - ASD recommends that system operators take the following actions to remove the BADCANDY implant if compromised and to mitigate the risk of re-exploitation.

Threat Actors Exploit Multiple Vulnerabilities in Ivanti Connect Secure and Policy Secure Gateways   Advisory

Feb 28, 2024 - The Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), Multi-State Information Sharing & Analysis Center (MS-ISAC), Australian Signals Directorate’s Australian Cyber Security Center (ASD’s ACSC), and the UK’s National Cyber Security Centre (NCSC), are releasing this joint Cybersecurity Advisory (CSA) in response to the active exploitation of CVE-2023-46805, CVE-2024-21887, CVE-2024-22024, and CVE-2024-21893—multiple vulnerabilities affecting Ivanti Connect Secure and Ivanti Policy Secure gateways.

Secure your user account   Guidance

Jan 24, 2024 - A user account is the account you use to sign in on your computer at home, school or work. Cybercriminals will target unsecure accounts and take advantage of poor security habits within the home and businesses. Their goal is to get access to your computer and steal your information. There are many ways to improve your account security, keep your accounts safe and avoid being the victim of a cyber attack.

Australia is fighting back against ransomware   News

Jun 15, 2021 - Australians continue to be targeted by cybercriminals through ransomware campaigns impacting multiple sectors across our economy.

APT40 Advisory   Advisory

Jul 9, 2024 - This advisory, authored by the Australian Signals Directorate’s Australian Cyber Security Centre and international partners, outlines a People’s Republic of China (PRC) state-sponsored cyber group and their current threat to Australian networks.

Remote code execution vulnerability present in the MSHTML component of Microsoft Windows   Alert

Sep 14, 2021 - A vulnerability exists in a component of Microsoft Windows. A malicious cyber actor could exploit this vulnerability to execute arbitrary code, potentially enabling the actor to take control of the vulnerable host. At this current time there is no patch available, affected Australian customers should apply the Microsoft recommended workarounds.

IRAP application form   Program

May 7, 2024 - IRAP application form

Important Vulnerabilities in Microsoft’s August 2023 Security Update   Alert

Aug 10, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is concerned about vulnerabilities disclosed in Microsoft’s August 2023 Security Update. Government, businesses and individuals should patch their Microsoft products and apply any recommended mitigations as soon as possible.

Mobility hardening  

Sep 3, 2025 - This page lists advice and resources to help keep mobile devices and mobility tools secure.

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.

Essential Eight assessment course   Program

Jul 3, 2023 - The Essential Eight Assessment Course will help you understand the intent and application of the Essential Eight, learn to use ASD designed tools, and accurately test the implementation of the Essential Eight.

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.

Online shoppers the target of Christmas cyber grinches   News

Nov 3, 2021 - In the lead-up to Black Friday and festive season sales, Australians must be alert to the cybercriminals seeking to steal your Christmas joy and your money.

Remote code execution vulnerability present in the Windows Scripting Engine of Microsoft Windows   Alert

Sep 16, 2021 - A vulnerability exists in a component of Microsoft Windows. A malicious cyber actor could exploit this vulnerability to execute arbitrary code, potentially enabling the actor to take control of the vulnerable host. Affected Australian customers should apply the security update provided by Microsoft.