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Publications  

Nov 3, 2022 - Find the latest cybersecurity publications.

Advice, guidance and publications  

Nov 3, 2022 - Find the latest cyber security advice, guidance and publications

Watch out for threats  

Nov 2, 2022 - Know what to look for to stay in control of your devices and applications.

ACSC Threat Report 2017   Reports and statistics

Oct 15, 2017 - This is the third Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) Threat Report. It continues to reflect on the experience, focus, and mandates of the ASD’s ACSC’s member organisations. The report provides an insight into what the Centre has been seeing, learning, and responding to, focusing on specific areas of change or new knowledge obtained.

ASD's ACSC Threat Report 2016   Reports and statistics

Oct 15, 2016 - This is the second Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) Threat Report. It continues to reflect on the experience, focus, and mandates of the ASD's ACSC’s member organisations. The report provides an insight into what the Centre has been seeing, learning, and responding to, focusing on specific areas of change or new knowledge obtained.

ASD's ACSC Annual Cyber Threat report 2020-21   News

Sep 16, 2021 - The Assistant Minister for Defence, The Hon Andrew Hastie MP, released the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) Annual Cyber Threat Report 2020-21.

ASD's ACSC Annual Cyber Threat Report, July 2021 to June 2022   Reports and statistics

Nov 4, 2022 - The Annual Cyber Threat Report is the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) flagship unclassified publication. The Report provides an overview of key cyberthreats impacting Australia, how the ACSC is responding to the threat environment, and crucial advice for Australian individuals and organisations to protect themselves online.

ASD's ACSC Threat Report 2015   Reports and statistics

Jul 15, 2015 - This report describes the range of cyber adversaries targeting Australian networks, their motives, and the type of malicious activities they are conducting and their impact on Australian networks during 2014. It also offers mitigation advice on how organisations can defend against these activities.

ASD's ACSC Annual Cyber Threat Report, July 2019 to June 2020   Reports and statistics

Sep 3, 2020 - This report has been jointly produced by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), the ACIC and the AFP, and is the first unclassified annual threat report since the ASD's ACSC became part of the ASD in July 2018. The report identifies and describes key cyber security threats targeting Australian systems and networks, and provides a range of examples and real-world case studies of malicious activity targeting Australian networks, between July 2019 and June 2020. It provides mitigation advice that all Australians and organisations can take to defend against these threats.

ASD's ACSC Annual Cyber Threat Report, July 2020 to June 2021   Reports and statistics

Sep 15, 2021 - The ASD's ACSC Annual Cyber Threat Report 2020–21 has been produced by the Australian Cyber Security Centre, with contributions from the Defence Intelligence Organisation (DIO), Australian Criminal Intelligence Commission (ACIC), Australian Security Intelligence Organisation (ASIO), The Department of Home Affairs and industry partners.

Threats  

Common online security risks and advice on what you can do to protect yourself.

Scammers impersonating the ASD's ACSC   Alert

Jun 13, 2025 - Scammers are impersonating the ASD's ACSC sending out phishing emails to the public with the email content suggesting to download a malicious antivirus program.

ASD's ACSC/NCSC collaboration to strengthen cyber security posture   News

Nov 4, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and the UK’s National Cyber Security Centre (NCSC) are committed to improving our respective nation’s cyber security posture and protecting our networks from cyber threats.

Using Content Credentials to help mitigate cyber threats associated with generative AI   News

Jan 30, 2025 - With advanced AI tools, digital media can be created or modified convincingly with minimal effort and cost. Learn more about media provenance solutions to help end users verify the integrity of your organisation’s content.

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.

Increased Global Ransomware Threats   Alert

Feb 10, 2022 - In 2021, cybersecurity authorities in the United States, Australia, and the United Kingdom observed an increase in sophisticated, high-impact ransomware incidents against critical infrastructure organizations globally.

DDoS threats being made against Australian organisations   Alert

May 25, 2020 - Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a number of Denial of Service (DoS) for ransom threats being made against Australian organisations, primarily in the banking and finance sector.

Revamped guide to protect Australian businesses against cyber threats   News

Jun 22, 2023 - Australian businesses have a new source of help to understand and combat cyber threats through the refreshed Small Business Cyber Security Guide and new video developed by the The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC).

Recommendations to mitigate DDoS threats being made against Australian organisations   Advisory

Feb 25, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of a number of Denial of Service (DoS) for ransom threats being made against Australian organisations, primarily in the banking and finance sector.

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.

Protecting Against Cyber Threats to Managed Service Providers and their Customers   Advisory

May 12, 2022 - This advisory describes cybersecurity best practices for information and communications technology (ICT), focusing on guidance that enables transparent discussions between MSPs and their customers on securing sensitive data.

Safeguard your business from cyber threats with the Australian Signals Directorate    News

May 13, 2024 - Australian business owners and organisations can access advice from the Australian Signals Directorate (ASD) to stay secure online.

CISA, FBI, NSA, and international partners issue advisory on demonstrated threats and capabilities of Russian state-sponsored and cyber criminal actors   News

Apr 22, 2022 - Since Russia’s invasion of Ukraine in February, the risk of malicious cyber operations by Russian state-sponsored and criminal cyber actors has increased. The threats to critical infrastructure could impact organisations both within and beyond Ukraine.

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.

Annual Cyber Threat Report 2023-2024   Reports and statistics

Nov 20, 2024 - ASD’s Annual Cyber Threat Report 2023–24 provides an overview of the key cyber threats impacting Australia, how ASD’s ACSC is responding and cyber security advice for Australian individuals, organisations and government to protect themselves online.

ASD Cyber Threat Report 2022-2023   Reports and statistics

Nov 14, 2023 - The ASD's Cyber Threat Report is ACSC’s flagship unclassified publication. The Report provides an overview of key cyber threats impacting Australia, how the ACSC is responding to the threat environment, and crucial advice for Australian individuals and organisations to protect themselves online

ASD/ACSC engagement request   Service

Jun 8, 2023 - Thank you for your interest in having ASD/ACSC attend or speak at your event. In order for us to identify the most appropriate staff member, we ask that you provide us with some information about your event, the audience and intended outcome of your engagement with ASD/ACSC. Please note we require 8 weeks’ notice to review your request.

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.

ASD's ACSC urges victims to report cybercrimes   News

Jul 17, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) is urging all Australians to report cybercrimes immediately to ReportCyber amid the growing number of cybercrimes impacting Australians.

2023-01: ASD's ACSC Ransomware Profile - Royal   Advisory

Jan 24, 2023 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) is aware of a ransomware variant called Royal, which is being used by cybercriminals to conduct ransomware attacks against multiple sectors and organisations worldwide, including Australia. Once gaining access to a victim’s environment, cybercriminals use this ransomware for similar purposes to other variants such as encrypting their data and extorting a ransom to return access to the sensitive files.