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Interactive tools and advice to boost your online safety.
Advice and information about how to protect yourself online.
Common online security risks and advice on what you can do to protect yourself.
Respond to cyber threats and take steps to protect yourself from further harm.
Resources for business and government agencies on cyber security.
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Mitigating cyber security incidents
Aug 30, 2023 - The Australian Signals Directorate has developed prioritised mitigation strategies to help organisations mitigate cyber security incidents caused by various cyber threats.
IRAP assessors list Program
Aug 1, 2025 - ASD's IRAP endorses qualified security professionals to provide information security services.
Cyber Security Awareness Month 2022 News
Sep 30, 2022 - October is Cyber Security Awareness Month and this year the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) theme is Have you been hacked?
Guidelines for personnel security Advice
Dec 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on personnel security.
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.
Choosing secure and verifiable technologies: Executive guidance Publication
Dec 5, 2024 - This guide supports senior leaders to enable their organisations to understand their threat environment and make better-informed assessments and decisions to procure secure technologies.
Privacy Awareness Week 2023 News
Apr 28, 2023 - The Australian Cyber Security Centre (ACSC) is supporting with the Office of the Australian Information Commissioner (OAIC) to support Privacy Awareness Week.
Consider your cyber hygiene in light of global events News
Dec 22, 2025 - Around the world, geopolitical tensions remain complex as nations navigate diplomatic, economic, and military challenges. ASD’s ACSC recommends that organisations continue to review their current cyber security posture and maintain sufficient monitoring for cyber threats.
#StopRansomware: Play ransomware Advisory
Jun 5, 2025 - This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.
Shop online securely this holiday season News
Nov 8, 2023 - The holiday season is fast approaching and more Australian’s than ever are shopping online. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) are reminding Australians to be cyber secure when shopping online.
The silent heist: cybercriminals use information stealer malware to compromise corporate networks Advisory
Sep 2, 2024 - Information stealer malware steals user login credentials and system information that cyber threat actors exploit, predominantly for monetary gain. Information stealers have been observed in attacks against multiple organisations and sectors worldwide, including Australia. This advisory provides readers with cyber security guidance on information stealers, including threat activity and mitigation advice for individuals and organisations.
Managing cryptographic keys and secrets Publication
Aug 26, 2025 - This guide has been developed to help organisational personnel in understanding the threat environment and the value of implementing secure keys and secrets management to make better informed decisions.
Geo-blocking in context: Realities, risks and recommendations Publication
May 19, 2025 - This guidance is intended for decision makers and cyber security practitioners. It highlights what to be aware of when identifying the source of a threat and the potential implications of geo-blocking in a broader cyber security strategy.
#StopRansomware: LockBit 3.0 Ransomware Affiliates Exploit CVE 2023-4966 Citrix Bleed Vulnerability Advisory
Nov 29, 2023 - This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.
New advisory – PRC state-sponsored actors compromise networks worldwide to feed global espionage system News
Aug 28, 2025 - Don’t feed their global espionage systems – read the full advisory for vital insights on threat hunting, indicators of compromise, and mitigation strategies to help your organisation safeguard your networks and assets.
Cyber security principles Advice
Dec 4, 2025 - Follow the Information security manual (ISM)'s cyber security principles to protect information technology and operational technology systems, applications and data from cyber threats.
Investing in modern defensible architecture Publication
Oct 23, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) and international partners present this guidance to help organisations develop an MDA investment roadmap based on their organisational strategy, business and security objectives, risk profile and threat context.
Feb 25, 2023 - Contact ASD's ACSC for general enquiries and media enquiries.
Australian organisations encouraged to urgently adopt an enhanced cyber security posture Alert
Mar 28, 2022 - Australian organisations are encouraged to urgently adopt an enhanced cyber security posture. Organisations should act now and follow ACSC’s advice to improve their cyber security resilience in light of the heightened threat environment.
Cyber security research report Reports and statistics
Dec 15, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) commissioned exploratory research to better understand audience awareness of cyber security threats and practices.
