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/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
/report-and-recover

Report and recover  

Respond to cyber threats and take steps to protect yourself from further harm.

/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
/node/2027

Home  

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

/business-government/protecting-devices-systems/hardening-systems-applications/system-hardening/microsoft-exchange-server-security-best-practices

Microsoft Exchange Server security best practices   Publication

Oct 31, 2025 - This paper—authored by the National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), and Canadian Centre for Cyber Security (Cyber Centre)—provides security best practices for administrators on hardening on-premises (on-prem) Exchange.

Organisations & Critical Infrastructure
Government
/about-us/news/information-security-registered-assessor-program-irap

Information Security Registered Assessor Program (IRAP)   News

Dec 15, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is further enhancing cyber security assessment and training, improving cyber skills, and creating new cyber careers for Australians through the Information Security Registered Assessor Program (IRAP).

Small & medium businesses
Organisations & Critical Infrastructure
Government
/business-government/secure-design/secure-by-design/modern-defensible-architecture

Modern defensible architecture   Publication

Oct 23, 2025 - Modern defensible architecture is the first step in Australian Signals Directorate (ASD)’s Australian Cyber Security Centre (ACSC)’s push to ensure that secure architecture and design are being considered and applied by organisations in their cyber security and resilience planning.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/health-sector-snapshot

Health Sector Snapshot   News

Feb 10, 2021 - This Sector Snapshot is designed to enhance awareness of key cyber security threats in the health sector and advise executives and cyber security professionals within the health sector on what they can do to protect their organisation from cyber threats. This report provides a high-level overview of the cyber security environment from 1 January to 31 December 2020.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/privacy

Privacy  

Oct 24, 2022 - The cyber.gov.au website, including the cyber incident reporting portal (ReportCyber), is operated by the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC). The ASD's ACSC is part of the Australian Signals Directorate (ASD), an Australian Government agency.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/business-government/protecting-devices-systems/cloud-computing/cloud-shared-responsibility-model-executive-guidance

Cloud shared responsibility model: Executive guidance   Publication

Oct 20, 2025 - This publication is for executives with cyber security responsibilities in government entities, critical infrastructure and large organisations that use or plan to use a cloud service. This guidance aims to strengthen your understanding of the shared responsibility model (SRM), and potential impacts to your cyber security posture and your governance obligations.

Organisations & Critical Infrastructure
Government
/about-us/alerts/ransomware-targeting-australian-aged-care-and-healthcare-sectors

Ransomware targeting Australian aged care and healthcare sectors   Alert

Aug 2, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of increased targeting of healthcare, including hospitals and aged care, by ransomware campaigns undertaken by cyber criminals.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/reports-and-statistics/2020-health-sector-snapshot

2020 Health Sector Snapshot   Reports and statistics

Feb 22, 2021 - This Sector Snapshot is designed to enhance awareness of key cyber security threats in the health sector and advise executives and cyber security professionals within the health sector on what they can do to protect their organisation from cyber threats. This report provides a high-level overview of the cyber security environment within the health sector over a twelve month period (1 January to 31 December 2020).

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/asdsacsc-asks-have-you-been-hacked

The ASD's ACSC asks, ‘Have you been hacked?’   News

Aug 16, 2022 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) has launched a new online tool to help people who may be a victim of a cyber attack – Have you been hacked?

Individuals & families
Small & medium businesses
/about-us/about-asd-acsc/who-we-are

Who we are  

Oct 25, 2022 - Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) leads the Australian Government’s efforts to improve cyber security. Our role is to help make Australia the most secure place to connect online.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/advisories/2020-013-ransomware-targeting-australian-aged-care-and-healthcare-sectors

2020-013 Ransomware targeting Australian aged care and healthcare sectors   Advisory

Aug 2, 2020 - Recently there has been a significant increase in healthcare or COVID-19 themed malicious cyber activity, including targeting of the aged care and healthcare sectors by financially motivated cyber criminals using the ‘Maze’ ransomware.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/multiple-high-severity-vulnerabilities-discovered-exim-mail-server

Multiple high severity vulnerabilities discovered in the Exim mail server   Alert

May 10, 2021 - Exim vulnerabilities could enable a malicious cyber actor to compromise vulnerable Exim servers. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) strongly recommends applying available patches.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/sonicwall-devices-targeted-ransomware-utilising-stolen-credentials

SonicWall devices targeted with ransomware utilising stolen credentials   Alert

Aug 3, 2021 - SonicWall devices are being targeted by a malicious cyber actor as targets for ransomware. The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is aware of likely related activity targeting Australian organisations.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/shop-online-securely-this-holiday-season

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.

Individuals & families
Small & medium businesses
/about-us/news/irap-training-partnership

IRAP training partnership   News

Feb 23, 2021 - The Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) is partnering with organisations in South Australia and the ACT to deliver cyber security assessment training services for Australian business and organisations.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/mandatory-incident-reporting

Mandatory Incident Reporting   News

Apr 11, 2022 - New measures to enhance the cyber security of Australia’s critical infrastructure.

Organisations & Critical Infrastructure

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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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