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/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/system-hardening/detecting-and-mitigating-active-directory-compromises

Detecting and mitigating Active Directory compromises   Publication

Jan 22, 2025 - This publication provides an overview of techniques used to compromise Active Directory, and recommended strategies to mitigate these techniques. By implementing the recommendations in this publication, organisations can significantly improve their Active Directory security, and therefore their overall network security posture.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/russian-gru-targeting-western-logistics-entities-and-technology-companies

Russian GRU targeting Western logistics entities and technology companies   Advisory

May 22, 2025 - This joint cybersecurity advisory (CSA) highlights a Russian state-sponsored cyber campaign targeting Western logistics entities and technology companies.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/advisories/2021-top-malware-strains

2021 Top Malware Strains   Advisory

Aug 5, 2022 - This joint Cybersecurity Advisory (CSA) was coauthored by the Cybersecurity and Infrastructure Security Agency (CISA) and the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC).

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/protect-yourself/staying-secure-online/shopping-and-banking-online/online-shopping/while-you-are-shopping

While you are shopping   Guidance

The best way to avoid being a victim of cybercrime is to be informed. It is really important to know how to secure your device and recognise a fake website or scammer.

Individuals & families
/about-us/view-all-content/alerts-and-advisories/stopransomware-bianlian-ransomware-group

#StopRansomware: BianLian Ransomware Group   Advisory

Nov 21, 2024 - The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) are releasing this joint Cybersecurity Advisory to disseminate known BianLian ransomware and data extortion group IOCs and TTPs identified through FBI and ASD's ACSC investigations as of March 2023.

Small & medium businesses
Organisations & Critical Infrastructure
/about-us/news/head-acsc-address-aisa-cyber-conference-2021

Head ACSC Address to AISA Cyber Conference 2021   News

Mar 17, 2021 - The Future of Cyber Security in Australia’ – Address by Abigail Bradshaw CSC, on 15 March 2021 Canberra Convention Centre.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/stopransomware-play-ransomware

#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.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/protect-yourself/resources-protect-yourself/personal-cybersecurity-guides/protect-yourself-multi-factor-authentication

Protect yourself: Multi-factor authentication   Guidance

Oct 14, 2022 - Multi-factor authentication (MFA) is when you use two or more different types of actions to verify your identity.

Individuals & families
/report-and-recover/recover-from/identity-theft

Report and recover from identity theft   Guidance

Nov 14, 2024 - Know where to make a report and get help if someone has stolen your personal or business identity.

Individuals & families
Small & medium businesses
/about-us/alerts/are-you-ready-australian-domain-name-changes

Are you ready for Australian domain name changes?   Alert

Aug 8, 2022 - Australians have until 20 September 2022 to seek priority allocation of an .au direct domain name that matches their existing domain name.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/web-hardening/implementing-certificates-tls-https-and-opportunistic-tls

Implementing certificates, TLS, HTTPS and opportunistic TLS   Publication

Oct 6, 2021 - Transport Layer Security (TLS) is a widely used encryption protocol which enables parties to communicate securely over the internet. Through the use of certificates and Public Key Infrastructure (PKI), parties can identify each other through a trusted intermediary and establish encrypted tunnels for the secure transfer of information.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/advice-malicious-cyber-activity-iran

Advice for Malicious Cyber Activity by Iran   News

Sep 15, 2022 - Australian organisations are urged to be alert to continued malicious cyber activity conducted by Advanced Persistent Threat (APT) actors, assessed to be affiliated with the Iranian Government’s Islamic Revolutionary Guard Corps (IRGC).

Organisations & Critical Infrastructure
/resources-business-and-government/assessment-and-evaluation-programs/infosec-registered-assessors-program/cloud-services

Cloud Services   Program page

Feb 24, 2023 - The Cloud Services Certification Program (CSCP) ceased on 2 March 2020. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) ceased the Certified Cloud Services List (CCSL) on 27 July 2020 and concurrently released the Cloud Security Guidance package.

Organisations & Critical Infrastructure
Government
/resources-business-and-government/essential-cybersecurity/strategies-mitigate-cybersecurity-incidents/strategies-mitigate-cybersecurity-incidents

Strategies to mitigate cybersecurity incidents   Publication

Feb 1, 2017 - The Australian Signals Directorate (ASD) has developed prioritised mitigation strategies to help organisations mitigate cybersecurity incidents caused by various cyberthreats. This guidance addresses targeted cyber intrusions (i.e. those executed by advanced persistent threats such as foreign intelligence services), ransomware and external adversaries with destructive intent, malicious insiders, ‘business email compromise’, and industrial control systems.

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

Report  

Apr 11, 2023 - Report a cybercrime, incident or vulnerability.

/protect-yourself/resources-protect-yourself/personal-cybersecurity-guides/personal-cybersecurity-first-steps

Personal cybersecurity: First steps guide   Guidance

Apr 14, 2023 - The first of three cybersecurity guides in the personal cybersecurity series is designed to help everyday Australians understand a basic level of cybersecurity and how to take action to protect themselves from cyberthreats.

Individuals & families
/about-us/news/asdacsc-call-247

The ASD's ACSC On-Call 24/7   News

Nov 25, 2021 - All Australians now have greater access to cyber security help and advice through the Australian Signals Directorate’s Australian Cyber Security Centre's (ASD’s ACSC) enhanced national Cyber Security Hotline - 1300 CYBER1.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/essential-cybersecurity/strategies-mitigate-cybersecurity-incidents/strategies-mitigate-cybersecurity-incidents-mitigation-details

Strategies to mitigate cybersecurity incidents: Mitigation details   Publication

Feb 1, 2017 - The Australian Signals Directorate (ASD) has developed prioritised mitigation strategies to help cybersecurity professionals in all organisations mitigate cybersecurity incidents caused by various cyberthreats. This guidance addresses targeted cyber intrusions (i.e. those executed by advanced persistent threats such as foreign intelligence services), ransomware and external adversaries with destructive intent, malicious insiders, ‘business email compromise’, and industrial control systems.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/node/2027

Home  

Jul 19, 2022 - Welcome to the Australian Cyber Security Centre website - cyber.gov.au

/protect-yourself/resources-protect-yourself/personal-cybersecurity-guides/personal-cybersecurity-advanced-steps

Personal cybersecurity: Advanced steps guide   Guidance

Mar 23, 2023 - The third and final cybersecurity guide in the personal cybersecurity series is designed to help everyday Australians understand an advanced level of cybersecurity and how to take action to protect themselves from cyberthreats.

Individuals & families
/about-us/news/how-the-acsc-can-help-during-a-cyber-security-incident

How the ASD's ACSC can help during a cyber security incident   News

Sep 11, 2023 - The Australian Signal’s Directorate’s Australian Cyber Security Centre’s (ASD's ACSC) incident management capabilities provide technical advice and assistance to support Australian organisations through a cyber security incident response.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/system-administration/securing-powershell-enterprise

Securing PowerShell in the enterprise   Publication

Oct 6, 2021 - This publication describes a maturity framework for PowerShell, balancing the security and business requirements of organisations. This framework enables organisations to take incremental steps towards securing PowerShell across their environment.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/network-hardening/domain-name-system-security-domain-resolvers

Domain Name System security for domain resolvers   Publication

Oct 6, 2021 - This publication explores DNS security for recursive resolution servers. It also shares helpful strategies to reduce the risk of DNS resolver subversion or compromise.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/legacy-it-management/managing-risks-legacy-it-executive-guidance

Managing the risks of legacy IT: Executive guidance   Publication

Jun 12, 2024 - This publication provides high-level and strategic guidance for an organisation’s executive seeking to manage the risks of legacy IT.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/protect-yourself/securing-your-devices/how-secure-your-device/how-dispose-your-device-securely

How to dispose of your device securely   Guidance

May 18, 2022 - You should consider that any devices you dispose of could be accessed by strangers.

Individuals & families
Small & medium businesses
/resources-business-and-government/governance-and-user-education/secure-by-design/secure-design-foundations

Secure by Design foundations   Publication

Jul 30, 2024 - ASD’s ACSC's Secure by Design foundations represent a first step in a new approach to assist technology manufacturers and customers to adopt Secure by Design. While the foundations are primarily designed to foster discussion within technology manufacturers on how to best approach Secure by Design, they contain relevant information and actions for technology customers.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/remote-working-and-secure-mobility/secure-mobility/security-configuration-guide-apple-ios-14-devices

Security configuration guide: Apple iOS 14 devices   Publication

Oct 6, 2021 - ASD has developed this guide to assist Australians to understand risks when deploying iOS 14 devices and the security requirements that need to be met to allow them to handle classified data.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/protect-yourself/staying-secure-online/secure-your-wifi-and-router

Secure your Wi-Fi and router   Guidance

Oct 29, 2024 - How to make your software, devices and networks harder to access and more resilient to attack.

Individuals & families
Small & medium businesses
/about-us/view-all-content/news/are-you-protected-against-fast-flux

Are you protected against ‘fast flux’?   News

Apr 4, 2025 - Bulletproof Hosting Providers are using ‘fast flux’ to cycle quickly through bots and DNS records to bypass detection by network defenders and law enforcement agencies.

Organisations & Critical Infrastructure
Government
/threats/types-threats/scams

Scams   Threat

Apr 21, 2023 - Online scams cost Australians millions of dollars each year and anyone can be targeted. Cybercriminals often use familiar brands and logos to make themselves seem reliable.

Individuals & families
Small & medium businesses

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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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