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Supply chain compromise of 3CX DesktopApp   Alert

Mar 31, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a reported supply chain compromise affecting the 3CX DesktopApp, allowing malicious actors to conduct multi-stage attacks against users of the legitimate software. Australian users of affected versions of 3CX DesktopApp should immediately follow the vendor’s advice and investigate for signs of malicious activity.

Critical vulnerabilities in GitLab Products   Alert

Jan 15, 2024 - The Australian Signals Directorate’s (ASD's) Australian Cyber Security Centre (ACSC) is aware of critical vulnerabilities affecting GitLab Community Edition (CE) and Enterprise Edition (EE). Customers should update to a patched version immediately and enable multi-factor authentication for all GitLab accounts.

Potential SolarWinds Orion compromise   Alert

Jan 25, 2021 - FireEye identifies global campaign leveraging malicious updates to SolarWinds software.

COVID-19 scam messages   Advisory

Mar 16, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of a COVID-19 themed scam being distributed via text message.

Microsoft Exchange ProxyShell Targeting in Australia   Alert

Aug 19, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has observed targeting of the Microsoft Exchange ProxyShell vulnerability by Malicious actors.

The Commonwealth Cyber Security Posture in 2023   Reports and statistics

Nov 16, 2023 - The Commonwealth Cyber Security Posture in 2023 informs Parliament on the implementation of cyber security measures across the Australian Government for the 2022–23 financial year. According to the Flipchart of PGPA Act Commonwealth entities and companies, as of 30 June 2023 the Australian Government comprised 100 non-corporate Commonwealth entities (NCEs), 72 corporate Commonwealth entities (CCEs) and 17 Commonwealth companies (CCs); totalling 189 Australian government entities.

Priority logs for SIEM ingestion: Practitioner guidance   Publication

May 27, 2025 - This document is again intended for cyber security practitioners and provides detailed, technical guidance on the logs that should be prioritised for SIEM ingestion. It covers log sources including Endpoint Detection and Response tools, Windows/Linux operating systems, and Cloud and Network Devices.

People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection   Advisory

May 25, 2023 - The People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection joint advisory provides examples of the cyber actor’s commands, along with detection signatures to aid network defenders in hunting for this activity.

Protect your children online: A guide to cybersecurity for parents and carers   Guidance

May 2, 2024 - The steps in this guide can help you ensure that your children stay safe and secure 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.

Serious vulnerabilities in Atlassian products including Confluence, Jira and Bitbucket   Alert

Dec 7, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) is concerned about serious vulnerabilities in certain Atlassian products (CVE-2023-22522, CVE-2023-22523 and CVE-2022-1471) which are fixed by recent patches. Operators are urged to review Atlassian’s advice and implement recommended mitigations before exploitation begins.

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.

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.

Secure your email   Guidance

Jul 29, 2024 - How to protect yourself when using email and reduce spam and malicious emails.

Critical vulnerability in Pulse/Ivanti Connect Secure, Policy Secure and Neurons for ZTA gateways (CVE-2025-22457)   Alert

Apr 4, 2025 - Ivanti have released information regarding active exploitation of a critical vulnerability in Ivanti Connect Secure, Policy Secure and Neurons for ZTA gateways (CVE-2025-22457). ASD’s ACSC recommends customers follow the advice contained in Ivanti’s Security Advisory and assess their environments for malicious activity.

Shifting the balance of cybersecurity risk   Publication

Oct 17, 2023 - The Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and the following international partners provide the recommendations in this guide as a roadmap for technology manufacturers to ensure security of their products.

Cyber security terminology   Advice

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

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.

Protecting industrial control systems   Publication

Jul 1, 2018 - Industrial control systems are essential to our daily life. They control the water we drink, the electricity we rely on and the transport that moves us all. It is critical that cyberthreats to industrial control systems are understood and mitigated appropriately to ensure essential services continue to provide for everyone.