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Social media terms of use  

May 7, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) uses a number of social media services as part of its communications activities. These services include Facebook, Twitter, LinkedIn, Vimeo and YouTube. 

Planning for post-quantum cryptography   Publication

Sep 22, 2025 - A cryptographically relevant quantum computer (CRQC) will render most contemporary public key cryptography insecure, thus making ubiquitous secure communications based on current public key cryptography technology infeasible. As the creation of a CRQC presents new cyber security risks, organisations are encouraged to consider anticipating future requirements and dependencies of vulnerable systems during the transition to post-quantum cryptography (PQC) standards.

ASD's ACSC participation in Asia Pacific Computer Emergency Response Team (APCERT) Drill   News

Aug 25, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has joined international partners in the annual Asia Pacific Computer Emergency Response Team (APCERT) Drill.

Remote code execution vulnerability present in certain versions of Atlassian Confluence   Alert

Sep 1, 2021 - A vulnerability exists in certain self-hosted versions of Atlassian Confluence which could allow a malicious cyber actor to execute arbitrary code. Affected organisations should apply the available patch to mitigate this vulnerability.

Sustained targeting of the health sector   Alert

Oct 30, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) has identified a sustained campaign by sophisticated cybercrime actors impacting the Australian health sector.

ASD's ACSC and partners alert organisations to top 2021 malware strains   News

Aug 5, 2022 - The top types of malicious software – or malware – seen by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and international partners through 2021 have been detailed, along with advice on how to counter them.

Multiple vulnerabilities affecting Cisco ASA 5500-X Series devices   Alert

Sep 26, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of multiple vulnerabilities impacting Cisco Secure Firewall Adaptive Security Appliance (ASA) 5500-X Series models that are running Cisco ASA Software or Cisco Secure Firewall Threat Defense (FTD) Software.

Cisco reports active exploitation of these vulnerabilities globally. ASD’s ACSC has also observed targeting in Australia.

Multiple vulnerabilities affecting NetScaler ADC and NetScaler Gateway devices   Alert

Aug 27, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of multiple vulnerabilities (CVE-2025-7775, CVE-2025-7776 & CVE-2025-8424) affecting NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) products.

Critical vulnerability in certain Hikvision products, IP cameras   Alert

Sep 22, 2021 - A critical vulnerability exists in Hikvision products, including IP cameras, which could allow a cyber actor to take full control of the device. Affected Australian customers should apply an appropriate firmware update provided by Hikvision.

Use of Log4j vulnerabilities in ransomware activity   Alert

Dec 23, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) expects an increase in ransomware activity using Log4j as an exploit vector. Malicious actors may take advantage of trivial exploits to impact Australian organisations.

ASD's ACSC and international partners encourage action to mitigate risks for Log4j vulnerability   News

Dec 23, 2021 - ASD's ACSC and cyber security agency partners have issued a joint statement and advisory on the Log4j vulnerability providing technical details, mitigations and resources to help address the critical software flaw.

Advanced Persistent Threat (APT) actors targeting Australian health sector organisations and COVID-19 essential services   Alert

May 8, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware that Advanced Persistent Threat (APT) actors are actively targeting health sector organisations and medical research facilities.

Multiple vulnerabilities present in F5 products   Alert

May 9, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a F5 Security Advisory Addressing Multiple Vulnerabilities in their BIG-IP Product Range. Affected Australian organisations should take appropriate action.

Educational pack for seniors   Guidance

Jun 23, 2023 - This educational pack provides engaging content to help seniors learn how to stay cyber secure. Practical steps and topics range from a basic to advanced level.

Small business Google Chromebook and ChromOS 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.

Australian Signals Directorate unveils new facility   News

Mar 23, 2022 - The Australian Signals Directorate (ASD) has unveiled a new world-class cyber and foreign intelligence facility, as the agency prepares to mark 75 years defending Australia from global threats.

Enhanced visibility and hardening guidance for communications infrastructure   Advisory

Dec 4, 2024 - This guide provides network engineers and defenders of communications infrastructure with best practices to strengthen their visibility and harden their network devices against successful exploitation carried out by PRC-affiliated and other malicious cyber actors.

Critical severity vulnerability in Fortinet FortiOS SSL-VPN   Alert

Dec 13, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a heap-based buffer overflow vulnerability in FortiOS SSL-VPN. All Australian organisations should apply the available patch immediately.

Ongoing targeting of online code repositories   Alert

Sep 19, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is aware of increased targeting of online code repositories, with threat actors employing various tactics to scan for and extract secrets, access private code bases, and modify packages to infect users.

The ASD’s ACSC does not have information to indicate that a specific industry or sector is being targeted, with this advisory providing general awareness of an observed increase in activity.

ASD's ACSC has launched a new campaign on Business Email Compromise   News

Jun 28, 2022 - With the end of the financial year ushering in tax season, Australians are urged to strengthen their email security and be alert to criminals trying to fool them into making false payments or giving up details that could make them an easy target for cyber crime.

New domain name changes could leave your business or organisation at risk   Alert

Mar 23, 2022 - The new domain name category, could leave your business or organisation open to fraudulent cyber activity. Register your .au domain name before it becomes available to the general public.

2020-011: Critical Vulnerability in SAP NetWeaver Application Server (CVE-2020-6287)   Advisory

Jul 14, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) recommends users of these products urgently apply available security patches to prevent an adversary from exploiting this vulnerability.

Secure-by-Design Foundations   News

Jul 31, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) has released updated guidance to help technology manufacturers and those who use their digital product or service to adopt secure-by-design principles.

Critical remote code execution vulnerability found in the Log4j library   Alert

Dec 21, 2021 - A vulnerability (CVE-2021-44228) exists in certain versions of the Log4j library. A malicious cyber actor could exploit this vulnerability to execute arbitrary code. Australian organisations should apply latest patches immediately where Log4j is known to be used.

High Severity Vulnerability present in Microsoft Outlook for Windows   Alert

Mar 29, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a Microsoft Outlook for Windows vulnerability. All Australian organisations using all versions of Microsoft Outlook for Windows should apply the available patch immediately.

Remote code execution vulnerability present in vm2 sandbox   Alert

Oct 11, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a remote code execution vulnerability in vm2 sandbox versions prior to 3.9.11. Affected Australian organisations should apply the available patch immediately.

Remote code execution vulnerability present in Sophos Firewall   Alert

Mar 30, 2022 - A vulnerability (CVE-2022-1040) has been identified in Sophos Firewall prior to version 18.5 which could allow a malicious cyber actor to perform remote code execution. Affected Australian organisations should apply the available patch.

Traffic Light Protocol (TLP)   Publication

The Traffic Light Protocol is a set of Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) designations used to ensure that information is shared with the correct audience.

Technical example: Patch applications   Publication

Mar 1, 2023 - Patching applications is one of the most effective controls an organisation can implement to prevent cyber criminals from gaining access to their devices and sensitive information. Patches improve the security of applications by fixing known vulnerabilities.

New ASD’s ACSC guidance released to help Australians avoid risks related to social media and messaging applications   News

Jul 14, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has today released updated guidance to help all Australians better understand how social media and messaging apps can pose a risk to the security and privacy of individuals and organisations.