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VMware vCenter Server plugin remote code execution vulnerability (CVE-2021-21972)   Alert

Feb 25, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) advises users of VMware vCenter Server products, including as part of VMware Cloud Foundation, to ensure their systems are promptly patched after the recent disclosure of a new remote code execution vulnerability.

The Commonwealth Cyber Security Posture in 2025   Reports and statistics

Feb 12, 2026 - The Commonwealth Cyber Security Posture in 2025 informs the Australian Parliament on cyber security measures implemented across the Australian Government for the 2024–25 financial year.

Secure by Design  

Jul 22, 2024 - Secure by Design is a proactive, security-focused approach to the development of digital products and services that necessitates a strategic alignment of an organisation’s cybersecurity goals. Secure by Design requires cyberthreats to be considered from the outset to enable mitigations through thoughtful design, architecture and security measures. Its core value is to protect consumer privacy and data through designing, building, and delivering products with fewer vulnerabilities.

Update your devices  

Jan 25, 2023 - Updates are new, improved, or fixed versions of software. Regular updates are critical in maintaining a secure system. It's important to check for any updates and make sure that automatic updates are switched on. 

Artificial intelligence for small business   Publication

Jan 14, 2026 - This guide explains the key cyber security risks of adopting AI technologies and how to reduce while adopting. While traditional threats such as phishing, ransomware and insider threats are still relevant, this guide focuses on other risks that AI introduces.

Cyber security is essential when preparing for COVID-19   Advisory

Mar 13, 2020 - In light of the COVID-19 pandemic, organisations are developing strategies to protect staff and vulnerable members of our community.

Vulnerability in MongoDB product – MongoDB server leak   Alert

Dec 29, 2025 - ASD’s ACSC is aware of active global exploitation affecting MongoDB servers CVE-2025-14847.
ASD’s ACSC recommends that organisations take immediate action to mitigate affected products, apply the latest patches and investigate for potential compromise.

Guidelines for system management   Advice

Dec 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on system management.

Guidelines for software development   Advice

Dec 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on software development.

Archived Alerts and Advisories  

Jan 23, 2025 - Search archived cyber security alerts and advice

Secure connectivity principles for Operational Technology (OT)   Publication

Jan 15, 2026 - How organisations should design, secure, and manage connectivity in operational technology (OT).

Hardening Microsoft Windows 11 workstations   Publication

Jan 23, 2026 - This publication provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 11. While this publication refers to workstations, most recommendations are equally applicable to servers (with the exception of Domain Controllers) using Microsoft Windows Server. Security features discussed in this publication, along with the names and locations of Group Policy settings, are taken from Microsoft Windows 11 version 25H2.

Alerts and advisories  

Jan 30, 2023 - Find the latest in cyber security alerts and advisories

Don’t take BADCANDY from strangers – How your devices could be implanted and what to do about it   Advisory

Oct 31, 2025 - ASD recommends that system operators take the following actions to remove the BADCANDY implant if compromised and to mitigate the risk of re-exploitation.

A Shared Vision of Software Bill of Materials (SBOM) for Cybersecurity   Publication

Sep 4, 2025 - This guidance, authored by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) and international partners, presents a shared vision of Software Bill of Materials (SBOM) and the value that increased software component and supply chain transparency can offer to the global community.

Guidelines for cyber security documentation   Advice

Dec 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on cyber security documentation.

Critical vulnerability in Oracle E-Business Suite   Alert

Oct 7, 2025 - ASD’s ACSC recommends organisations update affected products to the latest versions and follow the advice detailed in the Oracle Security Advisory.

Microsoft Exchange Server security best practices   Publication

Oct 31, 2025 - This paper—authored by the National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), and Canadian Centre for Cyber Security (Cyber Centre)—provides security best practices for administrators on hardening on-premises (on-prem) Exchange.

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).

Mitigations for network defence   Publication

Oct 15, 2025 - This guidance provides actions for both executives and technical staff to strengthen their organisation’s network infrastructure.