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/about-us/advisories/revised-patch-released-disable-mitigation-against-spectre-variant-2

Revised patch released to disable mitigation against Spectre variant 2   Advisory

Jan 29, 2020 - Intel has confirmed that the microcode updates designed to mitigate Spectre variant 2 (CVE-2017-5715: Branch Target Injection) have introduced an increased risk of system instability, data loss and corruption.

Organisations & Critical Infrastructure
Government
/protect-yourself/securing-your-accounts/passphrases/creating-strong-passphrases

Creating Strong Passphrases   Guidance

Oct 6, 2021 - The longer your passphrase, the better. As adversaries can crack a short password with very little effort or time, you can increase the time and effort it takes by using a passphrase instead.

Individuals & families
Small & medium businesses
/about-us/view-all-content/alerts-and-advisories/2022-top-routinely-exploited-vulnerabilities

2022 Top Routinely Exploited Vulnerabilities   Advisory

Aug 4, 2023 - This advisory provides details on the Common Vulnerabilities and Exposures (CVEs) routinely and frequently exploited by malicious cyber actors in 2022 and the associated Common Weakness Enumeration(s) (CWE).

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/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/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
/about-us/view-all-content/news-and-media/practical-cyber-security-tips-business-leaders

Practical cyber security tips for business leaders   News

Jan 17, 2024 - Business leaders are at higher risk of a cyber incident due to the information they have access to, the people they interact with and the influence they have.

Small & medium businesses
Organisations & Critical Infrastructure
/about-us/view-all-content/alerts-and-advisories/Exploitation-of-Existing-Fortinet-Vulnerabilities

Exploitation of existing Fortinet Vulnerabilities    Alert

Apr 11, 2025 - Fortinet has released information regarding exploitation of previously known vulnerabilities affecting Fortinet devices.
ASD’s ACSC recommends customers follow the advice contained in Fortinet’s advisory page.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/resources-business-and-government/maintaining-devices-and-systems/remote-working-and-secure-mobility/remote-working/using-remote-desktop-clients

Using remote desktop clients   Publication

Oct 6, 2021 - Remote access solutions are increasingly being used to access organisations’ systems and data. One common method of enabling remote access is to use a remote desktop client. This publication provides guidance on security risks associated with the use of remote desktop clients.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/advisories/iranian-islamic-revolutionary-guard-corps-affiliated-cyber-actors-exploiting-vulnerabilities-data-extortion-and-disk-encryption-ransom-operations

Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disk Encryption for Ransom Operations   Advisory

Sep 15, 2022 - The Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC) has joined with international cyber security agency partners to co-author an advisory on continued Iranian state-sponsored cyber threats. Organisations are encouraged to apply the recommended mitigations to protect themselves online.

Organisations & Critical Infrastructure
/about-us/advisories/understanding-ransomware-threat-actors-lockbit

Understanding Ransomware Threat Actors: LockBit   Advisory

May 8, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) alongside international partners have released a joint advisory on the ransomware variant LockBit. It functions as an affiliate-based Ransomware-as-a-Service (RaaS) model where affiliates are recruited to conduct ransomware attacks using LockBit ransomware tools and infrastructure.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/threats/types-threats/cryptomining

Cryptomining   Threat

Jun 23, 2020 - Cryptocurrency mining (cryptomining) uses the processing power of computers to solve complex mathematical problems and verify cybercurrency transactions. The miners are then rewarded with a small amount of cybercurrency.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/microsoft-exchange-proxyshell-targeting-australia

Microsoft Exchange ProxyShell Targeting in Australia   Alert

Aug 19, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has observed targeting of the Microsoft Exchange ProxyShell vulnerability by Malicious actors.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/learn-basics/explore-basics/mfa

Turn on multi-factor authentication  

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

/protect-yourself/securing-your-devices/how-back-up-your-files-and-devices

How to back up your files and devices   Guidance

Nov 12, 2024 - Important data such as your photos, documents and financial records can be lost in an instant, so back it up regularly before it's too late.

Individuals & families
Small & medium businesses
/resources-business-and-government/maintaining-devices-and-systems/system-hardening-and-administration/system-hardening/implementing-application-control

Implementing application control   Publication

Nov 27, 2023 - Application control is one of the most effective mitigation strategies in ensuring the security of systems. As such, application control forms part of the Essential Eight from the Strategies to mitigate cybersecurity incidents. This publication provides guidance on what application control is, what application control is not, and how to implement application control.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/threats/types-threats/business-email-compromise

Business email compromise   Threat

Feb 11, 2023 - Learn about email phishing and what to do if you are scammed out of money, goods or information.

Small & medium businesses
/resources-business-and-government/governance-and-user-education/incident-response/cybersecurity-incident-response-planning-executive-guidance

Cybersecurity incident response planning: Executive guidance    Publication

Dec 12, 2024 - The Australian Signals Directorate (ASD) is responsible for monitoring and responding to cyberthreats targeting Australian interests. Reporting cybersecurity incidents to ASD ensures that timely assistance can be provided, if required. This may be in the form of investigations or remediation advice.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/further-cyber-sanctions-in-response-to-medibank-private-cyberattack

Further cyber sanctions in response to Medibank Private cyberattack   News

Feb 12, 2025 - Today Australia has imposed targeted financial and travel sanctions on a cyber infrastructure entity – ZServers – and five of its Russian employees for their roles in providing infrastructure to host and disseminate data stolen from Medibank Private in 2022.

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

Protect yourself: Updates   Guidance

Oct 14, 2022 - Cybercriminals are always looking for easy paths to get onto your devices.

Individuals & families
/learn-basics/explore-basics/seniors/educational-pack

Educational pack for seniors   Guidance

Jun 23, 2023 - This educational pack provides engaging content to help seniors learn how to stay cyber secure. Practical steps and topics range from a basic to advanced level.

Individuals & families
/about-us/view-all-content/news-and-media/secure-design-foundations

Secure-by-Design Foundations   News

Jul 31, 2024 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD's ACSC) has released updated guidance to help technology manufacturers and those who use their digital product or service to adopt secure-by-design principles.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/become-asd-partner

Become an ASD partner   Hub item

Register your interest in the Australian Signals Directorate’s Cyber Security Partnership Program and provide information about yourself and your organisation.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/accessibility

Accessibility  

Feb 15, 2021 - Under the Disability Discrimination Act 1992, Australian Government agencies are required to ensure information and services are provided in a non-discriminatory, accessible manner.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/critical-security-vulnerabilities-affecting-mitel-micollab-version-98-sp1-fp2-981201-and-earlier-versions

Critical security vulnerabilities affecting Mitel MiCollab version 9.8 SP1 FP2 (9.8.1.201) and earlier   Alert

Dec 9, 2024 - ASD’s ACSC is aware of multiple critical vulnerabilities impacting Mitel MiCollab collaboration applications.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/australias-second-ever-cyber-sanction-imposed

Australia’s second ever cyber sanction imposed   News

May 8, 2024 - Today the Australian Government, along with our international partners, has imposed a targeted financial sanction and travel ban on Russian citizen Dmitriy Khoroshev, for his leadership role in the notorious LockBit ransomware group.

/about-us/news/asdacscncsc-collaboration-strengthen-cyber-security-posture

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.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/translated/french

Français (French)   Guidance

Aug 17, 2023 - The information and resources available are intended to increase your safety online and have been translated into Français.

Individuals & families
Small & medium businesses
/about-us/news/national-cyber-security-exercises-australias-electricity-industry

National cyber security exercises for Australia’s electricity industry   News

Apr 30, 2020 - In November 2019, the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) coordinated a national cyber security exercise series in partnership with Australia’s electricity industry and government agencies.

Organisations & Critical Infrastructure
Government
/resources-business-and-government/governance-and-user-education/governance/planning-post-quantum-cryptography

Planning for post-quantum cryptography   Publication

Aug 25, 2023 - A cryptographically relevant quantum computer (CRQC) will render most contemporary public key cryptography insecure, thus making ubiquitous secure communications based on current public key cryptography technology infeasible. As the creation of a CRQC presents new cybersecurity risks, organisations are encouraged to consider anticipating future requirements and dependencies of vulnerable systems during the transition to post-quantum cryptography (PQC) standards.

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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