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Interactive tools and advice to boost your online safety.
Advice and information about how to protect yourself online.
Common online security risks and advice on what you can do to protect yourself.
Respond to cyber threats and take steps to protect yourself from further harm.
Resources for business and government agencies on cyber security.
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Protect yourself from remote access scams Advisory
Nov 4, 2020 - NEVER provide your personal and financial details or give a stranger remote access to your device or computer – simply hang up.
"Bulletproof" hosting providers Publication
Jan 22, 2025 - Bulletproof hosting (BPH) providers lease cybercriminals a virtual and/or physical infrastructure from which to operate. BPH providers are a specific class of internet infrastructure service that enables malicious actors (including cybercriminals) to host illicit content and run operations on the internet.
Updates to ASD’s Blueprint for Secure Cloud News
Mar 18, 2025 - We have updated the Blueprint to reflect recent changes to Microsoft Purview.
Technical example: Patch operating systems Publication
Dec 16, 2022 - Patching operating systems is one of the most effective controls an organisation can implement to prevent an adversary from gaining access to their devices and sensitive information. Patches improve the security of operating systems by fixing known vulnerabilities.
Small business cloud security guides: Introduction Publication
Dec 16, 2022 - Securing your business can be a complex task. Among the numerous security priorities and configuration options, it can be difficult to know where to begin. These guides adapt ASD's ACSC’s Essential Eight mitigation strategies and outline an example of how each can be implemented to secure Microsoft 365 capabilities. The technical examples are designed to offer significant protection against cybersecurity incidents while remaining accessible to organisations with limited resources and cybersecurity expertise.
New advice on implementing SIEM/SOAR platforms in your organisation News
May 27, 2025 - ASD has published a publication series about Security Information and Event Management (SIEM) and Security Orchestration, Automation, and Response (SOAR) platforms in collaboration with our international partners.
Domain Name System security for domain resolvers Publication
Oct 6, 2021 - This publication explores DNS security for recursive resolution servers. It also shares helpful strategies to reduce the risk of DNS resolver subversion or compromise.
Managing the risks of legacy IT: Practitioner guidance Publication
Jun 12, 2024 - This publication provides guidance for practitioners on managing the risks posed by legacy IT and outlines low-cost mitigations that organisations can draw upon.
Advisory 2020-016: "Zerologon" - Netlogon Elevation of Privilege Vulnerability (CVE-2020-1472) Advisory
Sep 22, 2020 - The ACSC recommends organisations immediately patch affected Microsoft Windows systems with the Microsoft August 2020 Security Updates, released 11/08/2020.
Fundamentals of Cross Domain Solutions Publication
Oct 6, 2021 - This publication introduces technical and non-technical audiences to cross domain security principles for securely connecting security domains.
Vulnerability Disclosure Program News
Nov 23, 2022 - New ACSC publication released to help organisations implement a Vulnerability Disclosure Program.
An Introduction to Securing Smart Places News
Nov 21, 2022 - New ASD's ACSC publication released to help organisations secure smart places.
New Secure-by-Design publication released in collaboration with international partners News
May 15, 2024 - Today, the Australian Signals Directorate has released a new Secure-by-Design advisory, Choosing Secure and Verifiable Technologies, developed and co-sealed with our Five Eyes partners.
Domain Name System security for domain owners Publication
Oct 6, 2021 - This publication provides information on DNS security for domain owners. It also shared helpful strategies to reduce the risk of domain misuse.
About us
Français (French) Guidance
Aug 17, 2023 - The information and resources available are intended to increase your safety online and have been translated into Français.
Seeking industry feedback on new ASD Foundations for Secure-by-Design News
Nov 2, 2023 - Have your say on how Secure-by-Design practices should look.
Secure by Design foundations Publication
Jul 30, 2024 - ASD’s ACSC's Secure by Design foundations represent a first step in a new approach to assist technology manufacturers and customers to adopt Secure by Design. While the foundations are primarily designed to foster discussion within technology manufacturers on how to best approach Secure by Design, they contain relevant information and actions for technology customers.
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.
Google Releases Security Updates for Chrome Browser Alert
Jun 21, 2021 - On June 17 2021, Google released Chrome version 91.0.4472.114 for Windows, Mac, and Linux. The patch notes for this version can be viewed at Chrome Release Note.
