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The ASD's ACSC asks, ‘Have you been hacked?’   News

Aug 16, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has launched a new online tool to help people who may be a victim of a cyber attack – Have you been hacked?

Who we are  

Oct 25, 2022 - Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) leads the Australian Government’s efforts to improve cyber security. Our role is to help make Australia the most secure place to connect online.

2020-013 Ransomware targeting Australian aged care and healthcare sectors   Advisory

Aug 2, 2020 - Recently there has been a significant increase in healthcare or COVID-19 themed malicious cyber activity, including targeting of the aged care and healthcare sectors by financially motivated cyber criminals using the ‘Maze’ ransomware.

Multiple high severity vulnerabilities discovered in the Exim mail server   Alert

May 10, 2021 - Exim vulnerabilities could enable a malicious cyber actor to compromise vulnerable Exim servers. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) strongly recommends applying available patches.

SonicWall devices targeted with ransomware utilising stolen credentials   Alert

Aug 3, 2021 - SonicWall devices are being targeted by a malicious cyber actor as targets for ransomware. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of likely related activity targeting Australian organisations.

Shop online securely this holiday season   News

Nov 8, 2023 - The holiday season is fast approaching and more Australian’s than ever are shopping online. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) are reminding Australians to be cyber secure when shopping online.

IRAP training partnership   News

Feb 23, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is partnering with organisations in South Australia and the ACT to deliver cyber security assessment training services for Australian business and organisations.

Modern defensible architecture   Publication

Oct 23, 2025 - Modern defensible architecture is the first step in Australian Signals Directorate (ASD)’s Australian Cyber Security Centre (ACSC)’s push to ensure that secure architecture and design are being considered and applied by organisations in their cyber security and resilience planning.

Mandatory Incident Reporting   News

Apr 11, 2022 - New measures to enhance the cyber security of Australia’s critical infrastructure.

Advisory 2020-009: Recommendations to mitigate APT actors targeting health sector and COVID-19 essential services   Advisory

May 8, 2020 - The ACSC recommends that organisations in the health sector implement the following cyber security mitigations:

Summary of Tradecraft Trends for 2019-20   Alert

May 20, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) investigated and responded to numerous cyber security incidents during 2019 and 2020 so far.

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.

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.

Cloud shared responsibility model: Executive guidance   Publication

Oct 20, 2025 - This publication is for executives with cyber security responsibilities in government entities, critical infrastructure and large organisations that use or plan to use a cloud service. This guidance aims to strengthen your understanding of the shared responsibility model (SRM), and potential impacts to your cyber security posture and your governance obligations.

COVID-19 Malicious Scams - Threat Awareness and Guidance   Advisory

Mar 27, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has produced a detailed report, including practical cyber security advice that organisations and individuals can follow to reduce the risk of harm.

Critical vulnerability in WatchGuard Firebox devices (CVE-2025-14733)   Alert

Dec 22, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of active exploitation of a critical vulnerability in WatchGuard Firebox devices.

New publication released – Quantum technology primer: Overview   News

Dec 15, 2025 - Strengthen your understanding of key quantum technology types, principles of quantum mechanics, and the considerations to factor into your cyber security plans.

Countering Chinese State-Sponsored Actors Compromise of Networks Worldwide to Feed Global Espionage System   Advisory

Aug 28, 2025 - This joint cyber security advisory gives vital insights on People’s Republic of China (PRC) state-sponsored cyber threat actors, how they gain and maintain persistent access, and the capabilities they have. It provides threat hunting guidance and mitigation strategies to help safeguard your networks.

Social media terms of use  

Jan 13, 2026 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) uses a number of social media services as part of its communications activities. These services include Facebook, Twitter, LinkedIn, Vimeo and YouTube. 

Best practices for event logging and threat detection   Publication

Aug 22, 2024 - This publication defines a baseline for event logging best practices to mitigate cyber threats.