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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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Mitigating cyber security incidents
Aug 30, 2023 - The Australian Signals Directorate has developed prioritised mitigation strategies to help organisations mitigate cyber security incidents caused by various cyber threats.
Essential Eight explained Publication
Nov 27, 2023 - This publication provides an overview of the Essential Eight.
ASD's ACSC Advisory 2020-012: Critical remote code execution vulnerability in Windows DNS server (CVE-2020-1350) Advisory
Jul 15, 2020 - An adversary who successfully exploits the vulnerability could run arbitrary code in the context of the Local System Account. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) strongly recommends users apply the security patch to their Windows DNS servers to prevent an adversary from exploiting this vulnerability.
If things go wrong Guidance
If you think you're a victim of a scam, there are steps you can take to protect yourself from further harm.
Alerts and advisories
Jan 30, 2023 - Find the latest in cyber security alerts and advisories
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.
New zero trust guidance – seeking industry feedback News
Feb 10, 2025 - Have your say on new Foundations for modern defensible architectures, including zero trust and secure-by-design principles.
Stay ahead of the quantum threat with post-quantum cryptography News
Sep 22, 2025 - Get updated advice to help your organisation plan and prepare for post-quantum cryptography.
Essential Eight Maturity Model Update News
Nov 27, 2023 - The Australian Signals Directorate has updated the Essential Eight Maturity Model (E8MM).
Do you purchase technology for your organisation? News
Dec 5, 2024 - Updated guidance and new guidance for executives now available for Choosing secure and verifiable technologies.
2020-003: Mailto ransomware incidents Alert
Feb 6, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of recent ransomware incidents involving a ransomware tool known as ‘Mailto’ or ‘Kazakavkovkiz’. Mailto belongs to the KoKo ransomware family.
New guidance on detecting and mitigating Active Directory compromises News
Sep 26, 2024 - Does your organisation use Microsoft’s Active Directory? Read our latest guidance on Active Directory compromises now.
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.
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.
Connecting to public Wi-Fi and hotspots Guidance
Apr 11, 2023 - Public Wi-Fi hotspots are found everywhere in places like your local shops, cafes, hotels and even at some parks. They can be a convenient way to access the internet when you are out, have poor reception or are travelling overseas. Learn more about connecting to public Wi-Fi and hotspots securely.
Email security
Jul 29, 2024 - Protect yourself, your employees and business from an email security incident before it's too late.
Delivering the goods in cyber security resilience to the transport and logistics sector News
Oct 27, 2022 - National Cyber Security Exercise Series: Australia’s transport and logistics sector – May to August 2023
Vulnerability Alert – 2 new Vulnerabilities associated with Microsoft Exchange. Alert
Oct 10, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of 2 zero day vulnerabilities associated with Microsoft Exchange Servers 2013, 2016 and 2019 (Exchange).
Ransomware Threat
Read through the following case studies and learn from other Australians about how ransomware has affected them.
Cyber skills framework Publication
Sep 10, 2020 - The Cyber Skills Framework enables targeted recruitment of cyber specialists, provides a development pathway for current and future cyber staff, and aligns skills, knowledge and attributes with national and international industry standards.
