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Creating Strong Passphrases Guidance
Oct 6, 2021 - The longer your passphrase, the better. As adversaries can crack a short password with very little effort or time, you can increase the time and effort it takes by using a passphrase instead.
The Case for Memory Safe Roadmaps – Joint Cyber Security Guide News
Dec 7, 2023 - In partnership with our international partners we released a joint cyber security guidance on Secure-by-Design memory safe roadmaps.
Remote code execution vulnerability present in certain versions of Palo Alto firewalls utilising the GlobalProtect VPN component Alert
Nov 11, 2021 - A vulnerability has been identified in certain versions of Palo Alto firewalls utilising the GlobalProtect VPN component. Affected Australian organisations should apply the available update as soon as possible.
Critical vulnerability present in certain versions of Apple iOS and iPadOS Alert
Oct 13, 2021 - A vulnerability has been identified in certain Apple products which could allow an actor to install malware or perform other actions on a vulnerable device.
Remote code execution vulnerability present in the Windows Scripting Engine of Microsoft Windows Alert
Sep 16, 2021 - A vulnerability exists in a component of Microsoft Windows. A malicious cyber actor could exploit this vulnerability to execute arbitrary code, potentially enabling the actor to take control of the vulnerable host. Affected Australian customers should apply the security update provided by Microsoft.
Critical vulnerability present in certain versions of Microsoft Excel Alert
Nov 11, 2021 - Microsoft has identified active exploitation of a vulnerability in Microsoft Excel. Affected Australian organisations should apply the available security update as soon as possible.
Remote code execution vulnerability present in the MSHTML component of Microsoft Windows Alert
Sep 14, 2021 - A vulnerability exists in a component of Microsoft Windows. A malicious cyber actor could exploit this vulnerability to execute arbitrary code, potentially enabling the actor to take control of the vulnerable host. At this current time there is no patch available, affected Australian customers should apply the Microsoft recommended workarounds.
Remote code execution vulnerability present in SonicWall SMA 100 series appliances Alert
Jan 19, 2022 - A vulnerability (CVE-2021-20038) has been identified in SonicWall SMA 100 series appliances. Exploitation of this vulnerability could allow an unauthenticated malicious cyber actor to perform remote code execution. Affected Australian organisations should apply the available patch.
Cyber Security Awareness Month 2024 News
Oct 1, 2024 - October is Cyber Security Awareness Month, a time for all Australians to talk about cyber security and take action to protect their devices and accounts.
Critical vulnerability in certain versions of Apache HTTP Server Alert
Oct 8, 2021 - A vulnerability exists in Apache HTTP Server 2.4.49. A cyber actor could exploit this vulnerability to execute arbitrary code. Initial information also indicates that the vulnerability could also be used perform remote code execution under certain configurations. Affected Australian organisations should apply the available patch.
Remote code execution vulnerability present in Open Management Infrastructure, affects certain Microsoft Azure services Alert
Sep 16, 2021 - A remote code execution vulnerability exists in Open Management Infrastructure, a management agent used in certain Linux-based Microsoft Azure services. Exploitation of this vulnerability could allow a malicious actor to take control of the vulnerable host. Affected organisations should apply the available security update.
Sextortion campaign - What to do if you receive the email Advisory
Apr 16, 2020 - In most cases, there is no reason to be concerned. These emails are typically generated in their thousands by online scammers using limited personal details, with the aim of intimidating recipients into paying the ransom.
Critical vulnerabilities present in certain versions of Apple iOS, macOS and Safari Alert
Sep 14, 2021 - Vulnerabilities have been identified in certain versions of Apple iOS, macOS and Safari which could allow an actor to install malware or perform other actions on a vulnerable device or computer.
Remote code execution vulnerability present in Samba versions prior to 4.13.17 Alert
Feb 4, 2022 - A vulnerability (CVE-2021-44142) has been identified in Samba versions prior to 4.13.17. Exploitation of this vulnerability could allow a malicious cyber actor to perform privileged remote code execution. Affected Australian organisations should apply the available patch, including affected software vendors.
Improve your cyber security with the Quad Cyber Challenge! News
Apr 6, 2023 - The challenge is aimed at promoting responsible cyber security practices across Australia, India, Japan and the United States.
Zoho ManageEngine ServiceDesk Plus & Desktop Central remote code execution vulnerabilities Alert
Dec 8, 2021 - Vulnerabilities have been identified in certain versions of Zoho ManageEngine ServiceDesk Plus and Desktop Central product suites. Australian organisations using vulnerable Zoho ManageEngine products should apply the available patch.
Critical vulnerabilities in ‘ownCloud’ file share Alert
Nov 29, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) is aware of multiple critical vulnerabilities affecting the file sync and sharing software ‘ownCloud’. This primarily impacts self-hosted instances of the open-source product. Those impacted should apply the patches available and consider the workarounds made available by the vendor.
New fact sheet for critical infrastructure leaders – actions to mitigate PRC state-sponsored cyber activity News
Mar 20, 2024 - The fact sheet provides guidance for critical infrastructure leadership to protect their infrastructure and critical functions from Volt Typhoon – a state-sponsored cyber actor linked to the People’s Republic of China (PRC).
Guidelines for physical security Advice
Sep 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on physical security.
Multi-factor authentication for stronger cyber protection News
Feb 25, 2021 - Australians are being urged to strengthen proof of identity protections to help stop cybercriminals gaining unauthorised access to online information and accounts.
Cyber Security Awareness Month 2023 News
Sep 25, 2023 - October is Cyber Security Awareness Month, a time for all Australians to improve their cyber security knowledge and take action to protect their information and devices.
Essential Eight Assessment Course News
Jul 4, 2023 - Today, the Australian Signals Directorate has launched the Essential Eight Assessment Course pilot in collaboration with TAFEcyber.
Mitigating cybersecurity incidents
Aug 30, 2023 - The Australian Signals Directorate has developed prioritised mitigation strategies to help organisations mitigate cybersecurity incidents caused by various cyberthreats.
Joint guide for cybersecurity best practices for Smart Cities News
Apr 20, 2023 - This guide provides three recommendations to help communities strengthen their cyber posture.
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2020-002: Critical vulnerabilities for Microsoft Windows Alert
Jan 15, 2020 - On 15 January 2020 (AEDT), Microsoft released security patches for three critical and one important vulnerabilities in the Microsoft Remote Desktop Client, Remote Desktop Gateway and the Windows operating system. The ACSC recommends that users of these products apply patches urgently to prevent malicious actors from using these vulnerabilities to compromise your network.
Technical example: Regular backups Publication
Dec 16, 2022 - Implementing regular backups will assist your organisation to recover and maintain its operations in the event of a cybersecurity incident, for example, a ransomware attack.
Guidelines for media Advice
Sep 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on media.
Guidelines for information technology equipment Advice
Sep 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on information technology equipment.
Personal cyber security guides
Oct 1, 2021 - This page includes a series of cyber security guides that you can use to protect yourself and be cyber secure.