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/learn-basics/explore-basics/mfa

Turn on multi-factor authentication  

Nov 9, 2022 - Protect your important accounts with extra login steps.

/learn-basics/explore-basics/passphrases

Set secure passphrases  

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

/node/2027

Home  

Sep 30, 2025 - Welcome to the Australian Cyber Security Centre website - cyber.gov.au

/learn-basics/view-resources/quiz-library

Quiz library   Guidance

Test your knowledge about cyber security practices and threats through our quizzes.

Individuals & families
Small & medium businesses
/about-us/view-all-content/alerts-and-advisories/archive

Archived Alerts and Advisories  

Jan 23, 2025 - Search archived cyber security alerts and advice

/about-us/view-all-content/alerts-and-advisories/vulnerability-in-mongodb-product-mongodb-server-leak

Vulnerability in MongoDB product – MongoDB server leak   Alert

Dec 29, 2025 - ASD’s ACSC is aware of active global exploitation affecting MongoDB servers CVE-2025-14847.
ASD’s ACSC recommends that organisations take immediate action to mitigate affected products, apply the latest patches and investigate for potential compromise.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/report-and-recover/recover-from/account-compromise

Report and recover from account compromise   Guidance

Nov 10, 2023 - A guide to recovering your account and protecting you against future attacks.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
/business-government/secure-design/quantum

Quantum  

Dec 15, 2025 - This page lists publications to help your organisation factor specific quantum technologies into its cyber security plans.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/report-and-recover/so-you-think-you-have-been-hacked

So you think you've been hacked  

Sep 1, 2022 - Use our interactive tool to find out what to do learn what steps to take if you think you’re the a victim of a cybercrime.

/about-us

About us  

Learn about who we are and what we do.

/about-us/view-all-content/alerts-and-advisories/critical-vulnerability-in-watchguard-firebox-devices-cve-2025-14733

Critical vulnerability in WatchGuard Firebox devices (CVE-2025-14733)   Alert

Dec 22, 2025 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of active exploitation of a critical vulnerability in WatchGuard Firebox devices.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/translated

Translated information  

Apr 4, 2024 - We have developed easy-to-follow cybersecurity information and resources to support people from non-English speaking backgrounds to be more cyber secure.

Individuals & families
Small & medium businesses
/business-government/asds-cyber-security-frameworks/ism/archived-ism-releases

Archived ISM releases   Service

Dec 4, 2025 - List of archived ISM releases.

Organisations & Critical Infrastructure
Government
/business-government/asds-cyber-security-frameworks/ism

Information security manual  

Dec 4, 2025 - The Information security manual (ISM) is a cyber security framework that an organisation can apply, using their risk management framework, to protect their information technology and operational technology systems, applications and data from cyber threats.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/reports-and-statistics/archive

Archived reports and statistics  

Feb 13, 2025 - Search archived report and statistics

/about-us/view-all-content/news/consider-your-cyber-hygiene-light-global-events

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.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/business-government/small-business-cyber-security/small-business-hub

Small business hub  

Sep 30, 2025 - How to protect your small business from common cyber threats.

Small & medium businesses
/about-us/view-all-content/news/new-publication-released-quantum-technology-primer-overview

New publication released – Quantum technology primer: Overview   News

Dec 15, 2025 - Strengthen your understanding of key quantum technology types, principles of quantum mechanics, and the considerations to factor into your cyber security plans.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/business-government/secure-design/operational-technology-environments

Operational technology environments  

Dec 4, 2025 - This page lists publications on critical infrastructure and their supporting operational technology environments.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/programs

Programs  

Nov 3, 2022 - Find relevant cyber security programs

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Acknowledgement of Country

We acknowledge the Traditional Owners and Custodians of Country throughout Australia and their continuing connections to land, sea and communities.
We pay our respects to them, their cultures and their Elders; past, present and emerging. We also recognise Australia's First Peoples' enduring contribution to Australia's national security.

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