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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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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.
"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.
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.
Updates to ASD’s Blueprint for Secure Cloud News
Mar 18, 2025 - We have updated the Blueprint to reflect recent changes to Microsoft Purview.
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.
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.
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.
Resources library
Jun 18, 2025 - Resources for individuals, families and small businesses
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.
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.
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.
Protect yourself: Multi-factor authentication Guidance
Dec 5, 2025 - Multi-factor authentication (MFA) is when you use two or more different types of actions to verify your identity.
Sextortion campaign - What to do if you receive the email Advisory
Apr 16, 2020 - In most cases, there is no reason to be concerned. These emails are typically generated in their thousands by online scammers using limited personal details, with the aim of intimidating recipients into paying the ransom.
Essential Eight assessment course Program
Jul 3, 2023 - The Essential Eight Assessment Course will help you understand the intent and application of the Essential Eight, learn to use ASD designed tools, and accurately test the implementation of the Essential Eight.
How to combat fake emails Publication
Oct 6, 2021 - Organisations can reduce the likelihood of their domains being used to support fake emails by implementing Sender Policy Framework (SPF) and Domain-based Message Authentication, Reporting and Conformance (DMARC) records in their Domain Name System (DNS) configuration. Using DMARC with DomainKeys Identified Mail (DKIM) to sign emails provides further safety against fake emails. Likewise, organisations can better protect their users against fake emails by ensuring their email systems use and apply SPF, DKIM and DMARC policies on inbound email.
Australian Information Security Evaluation Program (AISEP) Program
Dec 11, 2025 - The Australian Information Security Evaluation Program (AISEP) evaluates and certifies products to provide a level of assurance in its security functionality in order to protect systems and data against cyberthreats. These evaluation activities are certified by the Australian Certification Authority (ACA).
