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Latest alerts and advisories

04 Jul 2025

Critical vulnerabilities in Citrix Netscaler ADC and NetScaler Gateway Products

The ASD's ACSC is aware of critical vulnerabilities in Citrix Netscaler ADC and NetScaler Gateway Products (CVE-2025-5349, CVE-2025-5777).

Audience focus: Small & medium businesses Organisations & Critical Infrastructure Government

13 Jun 2025

Alert rating: Medium

Scammers impersonating the ASD's ACSC

Scammers are impersonating the ASD's ACSC sending out phishing emails to the public with the email content suggesting to download a malicious antivirus program.

Audience focus: Individuals & families Small & medium businesses Organisations & Critical Infrastructure Government

05 Jun 2025

Advisory

#StopRansomware: Play ransomware

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.

Audience focus: Small & medium businesses Organisations & Critical Infrastructure Government

Information and resources

Resources for individuals and families

Most people use the internet on a daily basis which can expose them to cyber attacks. Learn how to recognise the threats and protect yourself from cybercriminals.

Resources library

Resources for individuals, families and small businesses

Translated information

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

Cybercrime - getting help

If something has knocked you offline, check out the following information to help you get back up and running!

News

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09 Jul 2025

New guidance for small businesses to protect your devices and accounts

Follow a list of step-by-step actions to help protect your Apple, Google and Microsoft devices and accounts.

01 Jul 2025

Consider your cyber hygiene in light of global events

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…

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New guidance for small businesses to protect devices and accounts

Consider your cyber hygiene in light of global events

Information stealer malware advisory

Australian Signals Directorate’s Cyber Security Partnership Program

Information and resources

Resources for individuals and families

Resources library

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Cybercrime - getting help

News

New guidance for small businesses to protect your devices and accounts

Consider your cyber hygiene in light of global events

Acknowledgement of Country

New guidance for small businesses to protect devices and accounts

Consider your cyber hygiene in light of global events

Information stealer malware advisory

Critical vulnerabilities in Citrix Netscaler ADC and NetScaler Gateway Products

Scammers impersonating the ASD's ACSC

#StopRansomware: Play ransomware

Australian Signals Directorate’s Cyber Security Partnership Program

Never miss a threat

Information and resources

Resources for individuals and families

Resources library

Translated information

Cybercrime - getting help

New guidance for small businesses to protect your devices and accounts

Consider your cyber hygiene in light of global events