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Phone and email scammers impersonating the ASD's ACSC   Alert

Jan 19, 2022 - The Australian government will NEVER phone you to request access to your computer, or request you to purchase cryptocurrencies or gift cards. If you receive a suspicious phone call, take the caller's details, hang up and contact the company they claim to represent via official communication channels listed on their website. Never call a number provided by the scammer.

Quishing   Threat

Nov 2, 2023 - Quishing is a form of phishing attack that uses QR codes instead of text-based links in phishing emails, digital platforms or on physical items. Quishing is a social engineering technique used by scammers and malicious actors to trick their victims into providing sensitive personal information or downloading malware onto their devices.

Log4j: What Boards and Directors Need to Know   Advisory

Jan 7, 2022 - Log4j is a software library used as a building block found in a wide variety of Java applications. The Log4j vulnerability – otherwise known as Log4Shell – is trivial to exploit, and represents a significant business continuity risk. This publication outlines what Boards and Directors need to know in order to protect their businesses.

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.

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 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.

Potential Accellion File Transfer Appliance compromise   Alert

Feb 25, 2021 - The ACSC has identified Australian organisations that may have been impacted by the Accellion File Transfer Appliance vulnerability and have provided mitigation recommendations.

Exploitation of vulnerabilities affecting Cisco firewall platforms   Alert

Apr 25, 2024 - This alert has been written for the IT teams of organisations and government. Entities are strongly encouraged to take immediate action to ensure affected devices are patched and investigate for potential compromise.

Archived reports and statistics  

Feb 13, 2025 - Search archived report and statistics

Barracuda Email Security Gateway (ESG) malicious activity – additional Indicators of Compromise released   Alert

Dec 25, 2023 - Update: ASD's ACSC is aware of active exploitation of a third party library, Spreadsheet::ParseExcel, leading to potential Arbitrary Code Execution in Barracuda ESG appliances (CVE-2023-7101 and CVE-2023-7102).

Securing customer personal data   Guidance

Jul 30, 2024 - This guide is focused specifically on the protection of customers’ personal data. Guidance on general cybersecurity for businesses can be found in the Small business cybersecurity guide and the Strategies to mitigate cybersecurity incidents published by ASD’s ACSC.

Guidelines for procurement and outsourcing   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on procurement and outsourcing activities.

Recognise and report scams  

Feb 1, 2023 - Scams are a common way that cybercriminals compromise accounts. Being alert to scam messages is a great way to protect yourself online.

2021-010: ASD's ACSC Ransomware Profile - Conti   Advisory

Mar 4, 2022 - Conti is a ransomware variant first observed in early 2020, used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Conti is offered as a Ransomware-as-a-Service (RaaS), enabling affiliates to utilise it as desired, provided that a percentage of the ransom payment is shared with the Conti operators as commission. This product provides information related to Conti’s background, threat activity, and mitigation advice.

Set secure passphrases  

Jul 30, 2024 - Where multi-factor authentication is not available, a strong passphrase is your best defence. 

Potential SolarWinds Orion compromise   Alert

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

2022-004: ASD's ACSC Ransomware Profile – ALPHV (aka BlackCat)   Advisory

Apr 14, 2022 - ALPHV (aka BlackCat, Noberus) is a ransomware variant first observed in late 2021, used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia.

If things go wrong   Guidance

If you think you're a victim of a scam, there are steps you can take to protect yourself from further harm.

Malware targeting Centreon software   Alert

Feb 16, 2021 - ANSSI identifies campaign targeting Centreon system monitoring software.

Ransomware Playbook   Guidance

Oct 10, 2024 - This interactive guide is here to assist you with taking all of the appropriate steps to prepare for, respond to and recover from a ransomware incident.

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.

SonicWall Breach   Alert

Feb 4, 2021 - SonicWall identified an internal systems breach using a zero-day vulnerability within the SMA 100 series 10.x code.

Next.js authentication bypass vulnerability (CVE-2025-29927)   Alert

Mar 25, 2025 - An authentication bypass in the middleware layer of Next.js can allow a remote attacker to bypass security checks. Customers should update to the patched version immediately.

Advisory 2020-004: Remote code execution vulnerability being actively exploited in vulnerable versions of Telerik UI by sophisticated actors   Advisory

May 22, 2020 - This advisory is focused around the targeting of CVE-2019-18935 but has significant overlap to the previously released ACSC 2019-126 advisory.

Report and recover from a data breach   Guidance

Jul 14, 2023 - A data breach occurs when sensitive or personal information is accessed, disclosed or exposed to unauthorised people.

Widespread outages relating to CrowdStrike software update   Alert

Jul 21, 2024 - A CrowdStrike software update has led to outages impacting Windows systems.

Ten things to know about data security   Publication

May 16, 2024 - This publication has been developed to assist business owners and information technology managers, particularly those unfamiliar with cybersecurity, with ten things they should know about data security.

Increase in denial-of-service (DoS) attacks against Australian organisations   Advisory

Mar 17, 2025 - ASD's ACSC is aware of an increase in denial-of-service (DoS) attacks, where malicious actors flood websites with internet traffic, making it difficult for legitimate users to access them.

Security considerations for edge devices   Publication

Feb 5, 2025 - Edge devices are an important part of many enterprise computing systems. They allow connection across various devices that aid in productivity. However, just like with all technology they are not without their vulnerabilities. Edge devices require attention and diligence to keep data safe and secure.

Avaddon Ransomware   Alert

May 8, 2021 - Increase in Avaddon ransomware attacks in Australia.