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Turn on multi-factor authentication  

Nov 9, 2022 - Protect your important accounts with extra login steps.

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.

Hardening Microsoft Windows 11 workstations   Publication

Sep 4, 2025 - This publication provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 11. While this publication refers to workstations, most recommendations are equally applicable to servers (with the exception of Domain Controllers) using Microsoft Windows Server. Security features discussed in this publication, along with the names and locations of Group Policy settings, are taken from Microsoft Windows 11 version 24H2.

Hardening Microsoft Windows 10 workstations   Publication

Sep 4, 2025 - This publication provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 10. While this publication refers to workstations, most recommendations are equally applicable to servers (with the exception of Domain Controllers) using Microsoft Windows Server. Security features discussed in this publication, along with the names and locations of Group Policy settings, are taken from Microsoft Windows 10 version 22H2.

The Commonwealth Cyber Security Posture in 2024   Reports and statistics

Dec 5, 2024 - The Commonwealth Cyber Security Posture in 2024 informs the Australian Parliament on cyber security measures implemented across the Australian Government for the 2023–24 financial year.

Gateway security guidance package: Gateway security principles   Publication

Jul 29, 2025 - Guidance written for audiences responsible for the procurement, operation and management of gateways.

Protect yourself: Multi-factor authentication   Guidance

Oct 14, 2022 - Multi-factor authentication (MFA) is when you use two or more different types of actions to verify your identity.

Advisory 2021-002: Active exploitation of vulnerable Microsoft Exchange servers   Advisory

Mar 26, 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 the malicious actor to access email accounts and to enable further compromise of the Exchange server and associated networks.

End of support for Microsoft Windows and Microsoft Windows server   Publication

Sep 4, 2025 - Support for Microsoft Windows and Microsoft Windows Server users following the expiration of the specified servicing timeline.

The Commonwealth Cyber Security Posture in 2023   Reports and statistics

Nov 16, 2023 - The Commonwealth Cyber Security Posture in 2023 informs Parliament on the implementation of cyber security measures across the Australian Government for the 2022–23 financial year. According to the Flipchart of PGPA Act Commonwealth entities and companies, as of 30 June 2023 the Australian Government comprised 100 non-corporate Commonwealth entities (NCEs), 72 corporate Commonwealth entities (CCEs) and 17 Commonwealth companies (CCs); totalling 189 Australian government entities.

Guidelines for cybersecurity documentation   Advice

Sep 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on cybersecurity documentation.

Personal cyber security: First steps guide   Guidance

Apr 14, 2023 - The first of three cyber security guides in the personal cyber security series is designed to help everyday Australians understand a basic level of cyber security and how to take action to protect themselves from cyber threats.

Information stealer malware   Guidance

Jul 15, 2025 - Information stealer malware is a type of malware designed to steal sensitive data from devices. This can include user credentials, browser data and more.

2021 Top Malware Strains   Advisory

Aug 5, 2022 - This joint Cybersecurity Advisory (CSA) was coauthored by the Cybersecurity and Infrastructure Security Agency (CISA) and the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC).

Iranian Government-Sponsored APT Cyber Actors Exploiting Microsoft Exchange and Fortinet Vulnerabilities in Furtherance of Malicious Activities   Advisory

Nov 22, 2021 - Iranian government-sponsored APT actors are actively targeting a broad range of victims across multiple U.S. critical infrastructure sectors, including the Transportation Sector and the Healthcare and Public Health Sector, as well as Australian organisations.

ISM feedback form   Service

Mar 2, 2023 - ISM feedback and enquiries.

IRAP community feedback form  

Mar 1, 2021 - IRAP Community feedback form for the community to comment on a range of topics about the course

Understanding Ransomware Threat Actors: LockBit   Advisory

May 8, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) alongside international partners have released a joint advisory on the ransomware variant LockBit. It functions as an affiliate-based Ransomware-as-a-Service (RaaS) model where affiliates are recruited to conduct ransomware attacks using LockBit ransomware tools and infrastructure.

Exercise in a Box  

Nov 17, 2022 - This service provides an all-in-one platform that organisations can use to assess and improve their cybersecurity practices, in a controlled environment, and as many times as they want.

The Commonwealth Cyber Security Posture in 2022   Reports and statistics

Dec 16, 2022 - The Commonwealth Cyber Security Posture in 2022 (the report) informs Parliament on the implementation of cybersecurity measures across the Commonwealth government, for the period January 2021 to June 2022. As of June 2022, the Commonwealth comprised 97 non-corporate Commonwealth entities (NCCEs), 71 corporate Commonwealth entities (CCEs) and 17 Commonwealth companies (CCs).

Hardening systems and applications  

Apr 11, 2023 - It is important for all organisations to maintain the cybersecurity of their systems and data.

Threat update: COVID-19 malicious cyber activity 20 April 2020   Advisory

Apr 20, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) continues to receive reports from individuals, businesses and government departments about a range of different COVID-19 themed scams, online frauds and phishing campaigns. This threat update is about raising awareness of the evolving nature of COVID-19 related malicious cyber activity impacting Australians.

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.

Contact us  

Feb 25, 2023 - Contact ASD's ACSC for general enquiries and media enquiries.

ASD/ACSC engagement request  

Jun 8, 2023 - Thank you for your interest in having ASD/ACSC attend or speak at your event. In order for us to identify the most appropriate staff member, we ask that you provide us with some information about your event, the audience and intended outcome of your engagement with ASD/ACSC. Please note we require 8 weeks’ notice to review your request.

Report a cyber security incident   Service

If you are reporting fraud or cybercrime, please refer to the ReportCyber – Cybercrime page.

IRAP application form   Program page

May 7, 2024 - IRAP application form

After you've made a purchase   Guidance

Once you’ve made a purchase you still need to remain vigilant. Cybercriminals can target you even after you’ve made a purchase on a legitimate website. Learn what to look out for after you’ve bought something 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.

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: