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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.
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Secure your user account Guidance
Jan 24, 2024 - A user account is the account you use to sign in on your computer at home, school or work. Cybercriminals will target unsecure accounts and take advantage of poor security habits within the home and businesses. Their goal is to get access to your computer and steal your information. There are many ways to improve your account security, keep your accounts safe and avoid being the victim of a cyberattack.
Malware Threat
Nov 10, 2023 - Malware (short for 'malicious software') is software that cybercriminals use to harm your computer system or network. Cybercriminals can use malware to gain access to your computer without you knowing, in targeted or broad-based attacks.
Security tips for online gaming Guidance
Mar 1, 2024 - The world of online gaming is a popular target for scammers and cybercriminals. Gaming accounts can provide access to game licenses and linked payment methods making them highly valuable.
Secure your mobile phone Guidance
Nov 12, 2024 - The security of your mobile phone can be as crucial as your computer. Follow these steps to protect your phone or tablet from cybercriminals.
Alerts and advisories
Jan 30, 2023 - Find the latest in cybersecurity alerts and advisories
Essential Eight assessment process guide Publication
Oct 2, 2024 - This publication provides advice on how to assess the implementation of the Essential Eight.
Scattered Spider Advisory
Jul 30, 2025 - This joint Cybersecurity Advisory is in response to recent activity by Scattered Spider threat actors against the commercial facilities sectors, subsectors, and other sectors. This advisory provides tactics, techniques, and procedures (TTPs) obtained through FBI investigations as recently as June 2025
Remote code execution vulnerability in Windows DNS (CVE-2020-1350) Alert
Jul 15, 2020 - On 14 July 2020, Microsoft acknowledged a critical remote code execution vulnerability in Windows Domain Name System (DNS), which could allow an adversary to run arbitrary code.
Are you protected against ‘fast flux’? News
Apr 4, 2025 - Bulletproof Hosting Providers are using ‘fast flux’ to cycle quickly through bots and DNS records to bypass detection by network defenders and law enforcement agencies.
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.
System hardening
Oct 31, 2025 - This page lists publications on the hardening of applications and IT equipment.
The case for memory safe roadmaps Publication
Dec 7, 2023 - This guidance provides manufacturers with steps to create memory safe roadmaps and implement changes to eliminate memory safety vulnerabilities from their products.
AI data security Publication
May 23, 2025 - This publication provides essential data security guidance for organisations that develop and/or use AI systems, including businesses, government and critical infrastructure. It highlights the importance of data security in ensuring the accuracy and integrity of AI outcomes, and presents an in-depth examination of 3 areas of data security risks in AI systems: data supply chain, maliciously modified (poisoned) data, and data drift.
ASD women recognised for their contribution to the security industry News
Oct 19, 2022 - The Australian Signals Directorate (ASD) has been recognised for its contribution to supporting women in the security industry at an awards night in Sydney.
Small business cloud security guides
Apr 2, 2024 - ASD's ACSC has released a series of guides designed to help small businesses secure their cloud environment.
Technical example: Restrict administrative privileges Publication
Dec 16, 2022 - Privileged account credentials are prized by cybercriminals because they provide extensive access to high value assets within a network. Restricting privileged access to only users with a demonstrated business need is essential to protecting your environment.
New guidance for software and service manufacturers deploying system updates News
Oct 25, 2024 - Implementing a safe software deployment program is vital for maintaining customer trust.
Phone scams impersonating Australian businesses and government agencies Alert
Aug 13, 2020 - Cybercriminals are spoofing Australian mobile numbers and pretending to be from an Australian Government agency, delivery company or business, manipulating the individual to gain access to their device.
Joint Advisory on Technical Approaches to Uncovering and Remediating Malicious Activity Advisory
Sep 2, 2020 - The purpose of this report is to enhance incident response among partners and network administrators along with serving as a playbook for incident investigation.
Microsoft introduces Exchange Emergency Mitigation service News
Oct 1, 2021 - Microsoft has launched a new optional protection for Microsoft Exchange servers.