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Interactive tools and advice to boost your online safety.
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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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New cyber security advice for families News
May 2, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) has released new guidance to help you protect your family online.
Small business Google Chromebook and ChromOS security guide Guidance
Nov 12, 2024 - This publication was developed by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) with technical input from Chrome Engineering.
Cyber Security Awareness Month 2022 News
Sep 30, 2022 - October is Cyber Security Awareness Month and this year the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) theme is Have you been hacked?
Boost your cyber defences with backups News
Aug 17, 2021 - Backing up your data is one of the best defences against ransomware attacks conducted by the opportunistic cyber criminals who continue to threaten Australian businesses, organisations, and families.
Cyber Security Awareness Month 2021 News
Oct 5, 2021 - October is Cyber Security Awareness Month.
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?
Vulnerability disclosure programs explained Publication
Dec 12, 2024 - A vulnerability disclosure program (VDP) is a collection of processes and procedures designed to identify, verify, resolve and report on vulnerabilities disclosed by people who may be internal or external to organisations. The importance of developing, implementing and maintaining a well thought-out VDP cannot be underestimated. It is an integral part of professional organisations’ business operations.
Planning for post-quantum cryptography Publication
Sep 22, 2025 - Prepare your organisation for post-quantum cryptography with advice on transition timelines, milestones, and a framework to map transition stages.
Secure your NAS device Guidance
Nov 29, 2024 - Protect your network-attached storage (NAS) device and the important data it holds with this guide.
Cyber resources for small businesses News
Feb 11, 2022 - Last December, the Council of Small Business Organisations Australia (COSBOA) co-hosted an Act Now, Stay Secure breakfast at the National Portrait Gallery, along with the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and the Department of Home Affairs.
Password managers Guidance
May 12, 2025 - Learn how to create and store passwords in a secure location for your important accounts.
How to use the internet securely: A guide for seniors Guidance
Oct 1, 2021 - Some basic cyber security practices that you can use to protect yourself when accessing the internet.
Mitigating Log4Shell and Other Log4j-Related Vulnerabilities Advisory
Dec 23, 2021 - Malicious cyber actors are actively scanning networks to potentially exploit Log4Shell, CVE-2021-45046, and CVE-2021-45105 in vulnerable systems. According to public reporting, Log4Shell and CVE-2021-45046 are being actively exploited. This joint Cybersecurity Advisory is to provide mitigation guidance on addressing vulnerabilities.
Guidelines for cyber security roles Advice
Dec 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on cyber security roles.
Business Continuity in a Box Guidance
Aug 21, 2024 - Business Continuity in a Box assists organisations to swiftly and securely stand up critical business functions during or following a cybersecurity incident that has affected the availability or trust of existing systems.
Strategies to mitigate cybersecurity incidents Publication
Feb 1, 2017 - The Australian Signals Directorate (ASD) has developed prioritised mitigation strategies to help organisations mitigate cybersecurity incidents caused by various cyberthreats. This guidance addresses targeted cyber intrusions (i.e. those executed by advanced persistent threats such as foreign intelligence services), ransomware and external adversaries with destructive intent, malicious insiders, ‘business email compromise’, and industrial control systems.
Technical example: Patch applications Publication
Mar 1, 2023 - Patching applications is one of the most effective controls an organisation can implement to prevent cyber criminals from gaining access to their devices and sensitive information. Patches improve the security of applications by fixing known vulnerabilities.
Mergers, acquisitions and Machinery of Government changes Publication
Jun 10, 2022 - This publication provides guidance on strategies that organisations can apply during mergers, acquisitions and Machinery of Government changes.
Technical example: Multi-factor authentication Publication
Dec 16, 2022 - Multi-factor authentication (MFA) makes it harder for adversaries to use compromised user credentials to access an organisation’s systems. It is one of the most important cybersecurity measures an organisation can implement.
Protecting industrial control systems Publication
Jul 1, 2018 - Industrial control systems are essential to our daily life. They control the water we drink, the electricity we rely on and the transport that moves us all. It is critical that cyberthreats to industrial control systems are understood and mitigated appropriately to ensure essential services continue to provide for everyone.
