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/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/system-hardening/hardening-linux-workstations-and-servers

Hardening Linux workstations and servers   Publication

Nov 27, 2023 - This publication has been developed to assist organisations in understanding how to harden Linux workstations and servers.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/join-the-cyber-threat-intelligence-sharing-service-through-sentinel

Join the Cyber Threat Intelligence Sharing service through Sentinel   News

Mar 20, 2024 - The Australian Signals Directorate’s (ASD’s) Cyber Threat Intelligence Sharing (CTIS) is a two-way sharing platform that enables government and industry partners to receive and share information about malicious cyber activity at machine speed.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/prc-state-sponsored-cyber-group-apt40s-expanding-tradecraft-and-tactics

PRC state-sponsored cyber group APT40’s expanding tradecraft and tactics    News

Jul 9, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has released a new joint advisory with international partners on the People’s Republic of China (PRC) Ministry of State Security (MSS) tradecraft in action.

Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/email-hardening

Email hardening  

Apr 11, 2023 - This page lists publications on the hardening of message exchange via electronic mail.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/advisories/2023-03-asdacsc-ransomware-profile-lockbit-3.0

2023-03: ASD's ACSC Ransomware Profile – Lockbit 3.0   Advisory

Jun 15, 2023 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of Lockbit 3.0 which is the newest version of Lockbit ransomware. It is 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 as other variants such as encrypting their data, and extorting a ransom to return access to the sensitive files.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/online-shoppers-target-christmas-cyber-grinches

Online shoppers the target of Christmas cyber grinches   News

Nov 3, 2021 - In the lead-up to Black Friday and festive season sales, Australians must be alert to the cybercriminals seeking to steal your Christmas joy and your money.

Individuals & families
/protect-yourself/securing-your-devices/how-secure-your-devices/internet-things-devices

Internet of Things devices   Guidance

Apr 11, 2023 - IoT devices can include smart televisions, security cameras and fridges. Learn how to buy and use IoT devices securely.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/system-hardening/restricting-microsoft-office-macros

Restricting Microsoft Office macros   Publication

Nov 27, 2023 - This publication has been developed to discuss approaches that can be applied by organisations to secure systems against malicious Microsoft Office macros while balancing both their business and security requirements.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/critical-remote-code-execution-vulnerability-found-log4j2-library

Critical remote code execution vulnerability found in the Log4j library   Alert

Dec 21, 2021 - A vulnerability (CVE-2021-44228) exists in certain versions of the Log4j library. A malicious cyber actor could exploit this vulnerability to execute arbitrary code. Australian organisations should apply latest patches immediately where Log4j is known to be used.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/reports-and-statistics/manic-menagerie-investigation-report

Manic Menagerie Investigation Report   Reports and statistics

Jan 29, 2019 - This report details technical findings and mitigation advice related to the extensive compromise of at least eight Australian web hosting providers investigated by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) in May 2018.

Organisations & Critical Infrastructure
Government
/about-us/news/safer-internet-day-2021

Safer Internet Day 2021   News

Feb 9, 2021 - Safer Internet Day on 9 February 2021 aims to raise awareness of emerging online issues and share strategies everyone can use for staying secure online.

Individuals & families
/resources-business-and-government/governance-and-user-education/governance

Governance  

May 16, 2024 - This page lists publications on governance strategies that can be applied to improve cybersecurity within organisations.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/back-school-cyber-secure-devices

Back to school with cyber secure devices   News

Feb 4, 2022 - As children return to school, Australian parents are urged to make devices like mobile phones and laptop computers more cyber secure and to teach their children about cyber security, with 2022 set to be another year of hybrid learning for most families.

Individuals & families
/about-us/view-all-content/alerts-and-advisories/russian-fsb-cyber-actor-star-blizzard-continues-worldwide-spear-phishing-campaigns

Russian FSB cyber actor Star Blizzard continues worldwide spear-phishing campaigns   Advisory

Dec 8, 2023 - The Russia-based actor is targeting organisations and individuals in the UK and other geographical areas of interest.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
/resources-business-and-government/essential-cybersecurity/ism/cybersecurity-guidelines/guidelines-physical-security

Guidelines for physical security   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on physical security.

Organisations & Critical Infrastructure
Government
/about-us/news/multi-factor-authentication-stronger-cyber-protection

Multi-factor authentication for stronger cyber protection   News

Feb 25, 2021 - Australians are being urged to strengthen proof of identity protections to help stop cybercriminals gaining unauthorised access to online information and accounts.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/prc-state-sponsored-cyber-activity_actions-for-critical-infrastructure-leaders

PRC State-Sponsored Cyber Activity   Advisory

Mar 20, 2024 - This fact sheet provides an overview for executive leaders on the urgent risk posed by People’s Republic of
China (PRC) state-sponsored cyber actors known as "Volt Typhoon."

Organisations & Critical Infrastructure
Government
/resources-business-and-government/governance-and-user-education/secure-by-design/safe-software-deployment-how-software-manufacturers-can-ensure-reliability-for-customers

Safe Software Deployment   Publication

Oct 25, 2024 - It is critical for all software manufacturers to implement a safe software deployment program supported by verified processes, including robust testing and measurements.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/reports-and-statistics/msp-investigation-report

MSP Investigation Report   Reports and statistics

Dec 21, 2018 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) investigation report details the theft of commercial secrets, data and information from the Australian arm of a multinational construction services company via their Managed Service Provider.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/essential-cybersecurity/ism/cybersecurity-guidelines/guidelines-system-hardening

Guidelines for system hardening   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on system hardening.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/new-secure-design-publication-released-collaboration-international-partners

New Secure-by-Design publication released in collaboration with international partners   News

May 15, 2024 - Today, the Australian Signals Directorate has released a new Secure-by-Design advisory, Choosing Secure and Verifiable Technologies, developed and co-sealed with our Five Eyes partners.

Small & medium businesses
Organisations & Critical Infrastructure
/resources-business-and-government/maintaining-devices-and-systems/outsourcing-and-procurement/cyber-supply-chains/choosing-secure-and-verifiable-technologies-executive-guidance

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.

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-viasat-mobile-dynamic-defense

Security configuration guide: Viasat Mobile Dynamic Defense   Publication

Oct 6, 2021 - ASD has developed this guide to assist Australian’s to understand risks when deploying Viasat MDD devices and the security requirements that need to be met to allow them to handle classified data.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/system-hardening/hardening-microsoft-windows-10-and-windows-11-workstations

Hardening Microsoft Windows 10 and Windows 11 workstations   Publication

Jul 16, 2024 - This publication provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 10 and Windows 11. While this publication refers to workstations, most recommendations are equally applicable to servers (with the exception of Domain Controllers) using Microsoft Windows Server. Security features discussed in this publication, along with the names and locations of Group Policy settings, are taken from Microsoft Windows 10 version 22H2 and Windows 11 version 23H2.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/advisories/summary-tactics-techniques-and-procedures-used-target-australian-networks

Summary of Tactics, Techniques and Procedures Used to Target Australian Networks   Advisory

May 20, 2020 - This advisory provides information on methods to detect many of the TTPs listed. Partners are strongly encouraged to review their environments for the presence of the exploited vulnerabilities and provided TTPs.

Small & medium businesses
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
/resources-business-and-government/essential-cybersecurity/ism/cybersecurity-principles

Cybersecurity principles   Advice

Mar 18, 2025 - Follow the Information security manual (ISM)'s cybersecurity principles to protect information technology and operational technology systems, applications and data from cyberthreats.

Organisations & Critical Infrastructure
Government
/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/essential-cybersecurity/ism/cybersecurity-guidelines/guidelines-cryptography

Guidelines for cryptography   Advice

Mar 18, 2025 - This chapter of the Information security manual (ISM) provides guidance on cryptography.

Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/critical-infrastructure/cybersecurity-best-practices-smart-cities

Cybersecurity Best Practices for Smart Cities   Publication

Apr 20, 2023 - This guidance is the result of a collaborative effort from the United States Cybersecurity and Infrastructure Security Agency (CISA), the United States National Security Agency (NSA), the United States Federal Bureau of Investigation (FBI), the United Kingdom National Cyber Security Centre (NCSC-UK), the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), the Canadian Centre for Cyber Security (CCCS), and the New Zealand National Cyber Security Centre (NCSC-NZ).

Small & medium businesses
Organisations & Critical Infrastructure
Government

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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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