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Hardening Microsoft 365, Office 2021, Office 2019 and Office 2016   Publication

Jul 24, 2023 - Workstations are often targeted by malicious actors using malicious websites, emails or removable media in an attempt to extract sensitive information. Hardening applications on workstations is an important part of reducing this risk.

Essential Eight maturity model changes   Publication

Nov 27, 2023 - This publication provides an overview of the changes for the November 2023 release.

Defending against the malicious use of the Tor network   Publication

Oct 6, 2021 - The Tor network is a system that conceals a user’s IP address. It allows anonymous – and often malicious – communication. This guidance shares advice on how to detect and prevent traffic from the Tor network.

Securing Customer Personal Data for Small to Medium Businesses   News

Nov 17, 2023 - As data breaches increasingly impact Australian businesses and their customers, it’s crucial for businesses to improve their data security practices and ensure their customers’ personal data is handled appropriately.

Sign up for alerts  

Nov 14, 2024 - Sign up for alerts on the latest threats and vulnerabilities.

Report and recover from account compromise   Guidance

Nov 10, 2023 - A guide to recovering your account and protecting you against future attacks.

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.

Implementing network segmentation and segregation   Publication

Oct 6, 2021 - Learn about practical strategies to make it harder for malicious actors to access sensitive data. This guidance is for those responsible for an organisation’s network architecture and design.

Staying secure online during back-to-school shopping   News

Jan 19, 2021 - Parents are being urged to be vigilant while shopping online for school essentials this month, with back-to-school shopping opening up opportunities for cybercriminals to strike.

Guidelines for secure AI system development   Publication

Nov 27, 2023 - This document recommends guidelines for providers of any systems that use artificial intelligence (AI), whether those systems have been created from scratch or built on top of tools and services provided by others. This document is aimed primarily at providers of AI systems who are using models hosted by an organisation, or are using external application programming interfaces (APIs).

Cloud computing security for tenants   Publication

Jan 18, 2024 - This publication is designed to assist an organisation’s cybersecurity team, cloud architects and business representatives to jointly perform a risk assessment and use cloud services securely.

Increased Global Ransomware Threats   Alert

Feb 10, 2022 - In 2021, cybersecurity authorities in the United States, Australia, and the United Kingdom observed an increase in sophisticated, high-impact ransomware incidents against critical infrastructure organizations globally.

Cloud assessment and authorisation   Publication

Jan 18, 2024 - This publication is co-designed with industry to support the secure adoption of cloud services across government and industry.

Optus Data Breach   Alert

Sep 30, 2022 - To help protect against fraud, Optus has notified customers to look to reputable sources such as Moneysmart and the Office of the Australian Information Commissioner.

Cloud computing security for cloud service providers   Publication

Jan 18, 2024 - This publication is designed to assist cloud service providers (CSPs) in offering secure cloud services. It can also assist assessors in validating the security posture of a cloud service, which is often verified through an Infosec Registered Assessors Program (IRAP) assessment of the CSP services.

Safer Internet Day 2021   News

Feb 9, 2021 - Safer Internet Day on 9 February 2021 aims to raise awareness of emerging online issues and share strategies everyone can use for staying secure online.

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.

Single Reporting Portal   Guidance

Nov 22, 2023 - To help you meet your reporting responsibilities, the Australian Government has brought together a list of Commonwealth legislative reporting requirements that could be triggered by a cybersecurity incident.

Updates to ASD’s Blueprint for Secure Cloud   News

Mar 18, 2025 - We have updated the Blueprint to reflect recent changes to Microsoft Purview.

"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.

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.

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.

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.

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.

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.

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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.

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.

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.

Resources library  

Jun 18, 2025 - Resources for individuals, families and small businesses