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Fast Flux: A national security threat   Advisory

Apr 4, 2025 - This advisory is for network defenders and explains how Bulletproof Hosting Providers are using ‘fast flux’ to cycle quickly through bots and DNS records to bypass detection. It highlights the importance of using a reputable Protective DNS (PDNS) provider that detects and blocks fast flux.

Vulnerability in Ivanti Endpoint Manager Mobile (EPMM)   Alert

Jul 25, 2023 - This Alert is relevant to Australians who are running Ivanti EPMM. This alert is intended to be understood by slightly more technical users. Users are encouraged to immediately apply any available patches.

Managed service providers: How to manage risk to customer networks   Publication

Oct 6, 2021 - There are several mitigation strategies that managed service providers can implement to protect their own networks and manage the security risks posed to their customers’ networks.

Further cyber sanctions in response to Medibank Private cyberattack   News

Feb 12, 2025 - Today Australia has imposed targeted financial and travel sanctions on a cyber infrastructure entity – ZServers – and five of its Russian employees for their roles in providing infrastructure to host and disseminate data stolen from Medibank Private in 2022.

Spotting scams   Guidance

Learn how to identify phishing messages to stay safe and protect your personal information.

Advisory 2020-009: Recommendations to mitigate APT actors targeting health sector and COVID-19 essential services   Advisory

May 8, 2020 - The ACSC recommends that organisations in the health sector implement the following cyber security mitigations:

Preventing Web Application Access Control Abuse   Advisory

Jul 28, 2023 - The Australian Cyber Security Centre (ACSC), U.S. Cybersecurity and Infrastructure Security Agency (CISA), and U.S. National Security Agency (NSA) are releasing this joint Cybersecurity Advisory to warn vendors, designers, and developers of web applications and organizations using web applications about insecure direct object reference (IDOR) vulnerabilities.

Phishing   Threat

Mar 19, 2023 - Learn about phishing attacks and know what to do if you've been targeted.

SVR cyber actors adapt tactics for initial cloud access   Advisory

Feb 27, 2024 - How SVR-attributed actors are adapting to the move of government and corporations to cloud infrastructure.

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.

Foundations for OT cybersecurity: Asset inventory guidance for owners and operators   Publication

Aug 14, 2025 - This guidance outlines how OT owners and operators can create and maintain an asset inventory and OT taxonomy, to protect their most vital assets. It includes steps for defining scope and objectives for the inventory, identifying assets, collecting attributes, creating a taxonomy, managing data, and implementing asset life cycle management.

The ASD's ACSC asks, ‘Have you been hacked?’   News

Aug 16, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has launched a new online tool to help people who may be a victim of a cyber attack – Have you been hacked?

Critical Vulnerability in FortiOS   Alert

Feb 9, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of a critical (9.6) vulnerability (CVE-2024-21762) in Fortinet FortiOS devices.

Protect yourself online: A guide to cybersecurity for young people   Guidance

May 2, 2024 - The steps in this guide can help you navigate the online world with confidence.

Safe software deployment: How software manufacturers can ensure reliability for customers   Publication

Oct 25, 2024 - It is critical for all software manufacturers to implement a safe software deployment program supported by verified processes, including robust testing and measurements.

Easy steps to secure yourself online   Guidance

Apr 7, 2021 - Reduce the risk of being targeted by cybercriminals by following these easy steps.

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).

Russian State-Sponsored and Criminal Cyber Threats to Critical Infrastructure   Advisory

May 17, 2022 - The cybersecurity authorities of the United States, Australia, Canada, New Zealand, and the United Kingdom are releasing this joint Cybersecurity Advisory (CSA). The intent of this joint CSA is to warn organizations that Russia’s invasion of Ukraine has altered the geopolitical balance in ways that could expose organizations both within and beyond the region to increased malicious cyber activity. This activity may occur as a response to the unprecedented economic costs imposed on Russia as well as materiel support provided by the United States and U.S. allies and partners.

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.

How to use the internet securely: A guide for seniors   Guidance

Oct 1, 2021 - Some basic cyber security practices that you can use to protect yourself when accessing the internet.