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How to back up your files and devices   Guidance

Nov 12, 2024 - Important data such as your photos, documents and financial records can be lost in an instant, so back it up regularly before it's too late.

Protecting Against Cyber Threats to Managed Service Providers and their Customers   Advisory

May 12, 2022 - This advisory describes cybersecurity best practices for information and communications technology (ICT), focusing on guidance that enables transparent discussions between MSPs and their customers on securing sensitive data.

Security configuration guide: Apple iOS 14 devices   Publication

Oct 6, 2021 - ASD has developed this guide to assist Australians to understand risks when deploying iOS 14 devices and the security requirements that need to be met to allow them to handle classified data.

Hacking   Threat

Jan 5, 2023 - Hacking refers to unauthorised access of a system or network, often to exploit a system’s data or manipulate its normal behaviour.

Security configuration guide: Samsung Galaxy S10, S20 and Note 20 devices   Publication

Oct 6, 2021 - ASD has developed this guide to assist Australian’s to understand risks when deploying Samsung Galaxy and Samsung Note devices and the security requirements that need to be met to allow them to handle classified data.

Secure your Microsoft Windows device   Guidance

Nov 29, 2024 - Your Microsoft Windows device often holds your most important data. Use these simple steps to protect your device from cyberattacks.

Small business  

Jun 15, 2023 - Basic steps to protect your business and staff from cyberthreats. Our guide has information and resources to help you and your staff prepare for cyberattacks.

2023-03: ASD's ACSC Ransomware Profile – Lockbit 3.0   Advisory

Jun 15, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of Lockbit 3.0 which is the newest version of Lockbit ransomware. It is used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Once gaining access to a victim’s environment, cybercriminals use this ransomware for similar purposes as other variants such as encrypting their data, and extorting a ransom to return access to the sensitive files.

2023-01: ASD's ACSC Ransomware Profile - Royal   Advisory

Jan 24, 2023 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) is aware of a ransomware variant called Royal, which is being used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Once gaining access to a victim’s environment, cybercriminals use this ransomware for similar purposes to other variants such as encrypting their data and extorting a ransom to return access to the sensitive files.

Secure your Apple macOS device   Guidance

Nov 29, 2024 - Your Apple macOS device often holds your most important data. Use these simple steps to protect your device from cyberattacks.

Guidelines for system management   Advice

Jul 3, 2025 - This chapter of the Information security manual (ISM) provides guidance on system management.

Seniors  

Jun 23, 2023 - This guide provides some simple steps and resources to protect your personal information, accounts and life savings when going online.

An introduction to securing smart places   Publication

Nov 21, 2022 - Smart places, also known as smart cities, are places designed to provide enhanced services to citizens using a collection of smart information technology (IT)-enabled systems and devices that capture, communicate and analyse data. To achieve this purpose, previously discrete technologies and systems are interconnected to allow for large-scale coordination, real-time decision making, and increased visibility and situational awareness of the smart place’s status.

#StopRansomware: BianLian Ransomware Group   Advisory

Nov 21, 2024 - The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) are releasing this joint Cybersecurity Advisory to disseminate known BianLian ransomware and data extortion group IOCs and TTPs identified through FBI and ASD's ACSC investigations as of March 2023.

Security configuration guide: Viasat Mobile Dynamic Defense   Publication

Oct 6, 2021 - ASD has developed this guide to assist Australian’s to understand risks when deploying Viasat MDD devices and the security requirements that need to be met to allow them to handle classified data.

Secure your website   Guidance

Jul 29, 2024 - Small business account for over 95% of all businesses in Australia and 72% of them have a website. However, in a world in which websites are increasingly being targeted by cyber criminals, only 36% check for updates every week. For those small businesses with a website, or that are considering one, these three quick wins will help you protect your money, data and reputation.

Guidelines for cybersecurity documentation   Advice

Jul 3, 2025 - This chapter of the Information security manual (ISM) provides guidance on cybersecurity documentation.

Guidelines for email   Advice

Jul 3, 2025 - This chapter of the Information security manual (ISM) provides guidance on email.

Guidelines for procurement and outsourcing   Advice

Jul 3, 2025 - This chapter of the Information security manual (ISM) provides guidance on procurement and outsourcing activities.

Essential Eight assessment process guide   Publication

Oct 2, 2024 - This publication provides advice on how to assess the implementation of the Essential Eight.

Essential Eight maturity model and ISM mapping   Publication

Oct 2, 2024 - This publication provides a mapping between the Essential Eight and the controls within the Information security manual (ISM).

Essential Eight maturity model   Publication

Nov 27, 2023 - This publication provides advice on how to implement the Essential Eight.

Protect yourself from ransomware   Guidance

Feb 12, 2025 - A ransomware attack could block you from accessing your device or the information on it. Take some time to consider how a ransomware attack might affect you.

Detecting and mitigating Active Directory compromises   Publication

Jan 22, 2025 - This publication provides an overview of techniques used to compromise Active Directory, and recommended strategies to mitigate these techniques. By implementing the recommendations in this publication, organisations can significantly improve their Active Directory security, and therefore their overall network security posture.

System hardening and administration   

Apr 11, 2023 - It is important for all organisations to maintain the cybersecurity of their systems and data.

Small Business Google Chromebook and ChromeOS 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.

Guidelines for cybersecurity incidents   Advice

Jul 3, 2025 - This chapter of the Information security manual (ISM) provides guidance on cybersecurity incidents.

Learn the basics  

Aug 30, 2023 - Interactive tools and advice to boost your cyber security when online.

2021 Trends Show Increased Globalized Threat of Ransomware   Advisory

Feb 10, 2022 - This joint Cybersecurity Advisory—authored by cybersecurity authorities in the United States, Australia, and the United Kingdom—provides observed behaviors and trends as well as mitigation recommendations to help network defenders reduce their risk of compromise by ransomware.

Passkeys  

May 29, 2025 - Secure your online account with a passkey