Skip to main content
Report a cybercrime, cyber security incident or vulnerability.
Report

What are you looking for?

You can search for keywords to find pages that can help you e.g. scam

Report

Contact us

Portal login

  • About us

    About us

    Learn about who we are and what we do.

    About us
    • About ASD's ACSC
      • Who we are
      • Alerts and advisories
      • News
      • Reports and statistics
      • Contact us
  • Learn the basics

    Learn the basics

    Interactive tools and advice to boost your online safety.

    Learn cyber security Sign up for alerts
    • Explore the basics
      • Recognise and report scams
      • Set secure passphrases
      • Set up and perform regular backups
      • Turn on multi-factor authentication
      • Update your devices
      • Watch out for threats
      • Small business
      • Seniors
    • View resources
      • Glossary
      • Quiz library
      • Resources library
      • Translated Information
  • Protect yourself

    Protect yourself

    Advice and information about how to protect yourself online.

    Protect yourself Easy steps to secure yourself online Sign up for alerts
    • Securing your accounts
      • Multi-factor authentication
      • Passphrases
      • Passkeys
    • Securing your devices
      • How to secure your devices
      • How to back up your files and devices
      • How to update your device and software
    • Securing your email
      • Email security
    • Staying secure online
      • Connecting with others online
      • Protect yourself from scams
      • Online shopping
      • Connecting to public Wi-Fi and hotspots
      • Secure your Wi-Fi and router
      • Cybersecurity for charities and not-for-profits
    • Resources to protect yourself
      • Protecting your family
      • Personal cyber security guides
  • Threats

    Threats

    Common online security risks and advice on what you can do to protect yourself.

    Threats Report a cybercrime Sign up for alerts
    • Types of threats
      • Account compromise
      • Business email compromise
      • Cryptomining
      • Data breaches
      • Hacking
      • Identity theft
      • Information stealer
    • <notitle>
      • Malicious insiders
      • Malware
      • Phishing
      • Quishing
      • Ransomware
      • Scams
      • Social engineering
  • Report and recover

    Report and recover

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

    Report and recover Make a report Sign up for alerts
    • Report
      • Report a cybercrime, incident or vulnerability
      • Cybercrime - getting help
      • Single Reporting Portal
    • How we help during a cybersecurity incident
      • ASD’s role in cybersecurity: For legal practitioners
      • Supporting Australian organisations through a cybersecurity incident
      • Limited Use
    • Recover from
      • Account compromise
      • Business email compromise
      • Data breaches
      • Hacking
      • Identity theft
      • Malware
      • Ransomware
      • Scams
  • For business and government

    For business and government

    Resources for business and government agencies on cyber security.

    For business and government Become an ASD partner Critical infrastructure All publications Alerts and advisories Exercise in a Box
    • ASD's cyber security frameworks
      • Information security manual
      • Blueprint for Secure Cloud
      • Essential Eight
      • Gateway security guidance package
      • Mitigating cyber security incidents
      • Modern defensible architecture
      • Principles of operational technology cyber security
    • Secure design
      • Artificial intelligence
      • Operational technology environments
      • Planning for post-quantum cryptography
      • Secure by Design
    • Protecting devices and systems
      • Assessment and evaluation programs
      • Cloud computing
      • Hardening systems and applications
      • Legacy IT management
      • Remote working and secure mobility
      • Securing edge devices
      • System administration
    • Detecting and responding to threats
      • Cyber security incident response
      • Detecting and mitigating Active Directory compromises
      • Event logging
      • Vulnerability planning
    • Small business cyber security
      • Small business hub
      • Protecting your staff
      • Securing customer personal data
    • Supplier cyber risk management
      • Managed service providers
      • Managing cyber supply chains
    • Protecting business leaders
      • Cyber security for business leaders
      • Questions for boards to ask about cyber security
      • Security tips for social media and messaging apps
  • Contact us
  • Report a cybercrime or cyber security incident
  • Portal login
Australian Cyber
Security Hotline
1300 CYBER1 (1300 292 371)

Search

Filter results by

Content type

  • Advice and guidance
  • Alerts and advisories
  • News and media releases
  • Programs
  • Publications
  • Reports and statistics
  • Threats

Audience

  • Individuals & families
  • Small & medium businesses
  • Organisations & Critical Infrastructure
  • Government

Recommended pages

Watch out for threats
Ransomware

Search results

Displaying search results for
Displaying 541 - 570 of 680 results.

Applied filters
Clear all filters

/about-us/advisories/advisory-2021-002-active-exploitation-vulnerable-microsoft-exchange-servers

Advisory 2021-002: Active exploitation of vulnerable Microsoft Exchange servers   Advisory

Mar 26, 2021 - On 2 March 2021 Microsoft released information regarding multiple exploits being used to compromise instances of Microsoft Exchange Server. Malicious actors are exploiting these vulnerabilities to compromise Microsoft Exchange servers exposed to the internet, enabling the malicious actor to access email accounts and to enable further compromise of the Exchange server and associated networks.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/delivering-goods-cyber-security-resilience-transport-and-logistics-sector

Delivering the goods in cyber security resilience to the transport and logistics sector   News

Oct 27, 2022 - National Cyber Security Exercise Series: Australia’s transport and logistics sector – May to August 2023

Organisations & Critical Infrastructure
/about-us/alerts/kaseya-vsa-supply-chain-ransomware-attack

Kaseya VSA Supply-Chain Ransomware Attack   Alert

Jul 12, 2021 - Patch now available for Kaseya VSA platform.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/widespread-outages-relating-crowdstrike-software-update

Widespread outages relating to CrowdStrike software update   Alert

Jul 21, 2024 - A CrowdStrike software update has led to outages impacting Windows systems.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/news/cybercriminals-scanning-australian-entities-serious-cyber-vulnerability

Cybercriminals scanning Australian entities for serious cyber vulnerability   News

Dec 21, 2021 - Australians must urgently patch applications and software products as malicious cyber adversaries conduct thousands of scans in search of the vulnerability related to the critical Log4j software flaw.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/conti-ransomware-incidents-australia

Conti ransomware incidents in Australia   Alert

Dec 10, 2021 - Multiple Australian organisations have been impacted by Conti ransomware in November and December 2021.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/business-government/asds-cyber-security-frameworks/ism/cybersecurity-guidelines/guidelines-enterprise-mobility

Guidelines for enterprise mobility   Advice

Sep 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on enterprise mobility.

Organisations & Critical Infrastructure
Government
/business-government/protecting-devices-systems/remote-working-secure-mobility/secure-mobility/bring-your-own-device-executives

Bring Your Own Device for executives   Publication

Oct 6, 2021 - Bring Your Own Device (BYOD) scenarios enable organisations to take advantage of new technologies faster. It also has the potential to reduce hardware costs and improve organisational productivity and flexibility. However, BYOD also introduces new risks to an organisation’s business and the security of its information, which need to be carefully considered before implementation.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/critical-vulnerability-identified-apple-ios-and-macos

Critical vulnerability identified in Apple iOS and macOS   Alert

Feb 12, 2022 - A Remote Code Execution vulnerability has been identified in certain versions of Apple WebKit, affecting iOS and macOS devices. Affected users of these devices should update their devices as soon as possible.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/malware-targeting-centreon-software

Malware targeting Centreon software   Alert

Feb 16, 2021 - ANSSI identifies campaign targeting Centreon system monitoring software.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/business-government/asds-cyber-security-frameworks/ism/cybersecurity-guidelines/guidelines-communications-systems

Guidelines for communications systems   Advice

Sep 4, 2025 - This chapter of the Information security manual (ISM) provides guidance on communications systems.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/cisco-ios-xe-software-web-ui-zero-day-vulnerability

Cisco IOS XE Software Web UI Zero Day Vulnerability   Alert

Oct 25, 2023 - A previously unknown vulnerability (CVE-2023-20198) in the web UI feature of Cisco IOS XE Software could allow a malicious actor to take control of vulnerable devices. All Australian organisations should follow the recommendations published by Cisco.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/sextortion-email-campaign-impacting-australians

Sextortion email campaign impacting Australians   Alert

Apr 16, 2020 - A large number of Australians are being impacted by an email ‘sextortion’ campaign in which the cyber scammers responsible have threatened to release personal and sensitive information to the recipients’ contacts unless the scammer is paid in cash or bitcoin.

Individuals & families
/about-us/alerts/critical-vulnerability-present-sap-internet-communication-manager

Critical vulnerability present in SAP Internet Communication Manager   Alert

Feb 11, 2022 - A vulnerability has been identified in SAP Internet Communication Manager (ICM), a component of many SAP products, which may allow full system takeover. Affected organisations should apply the available security update.

Organisations & Critical Infrastructure
Government
/about-us/view-all-content/alerts-and-advisories/critical-vulnerabilities-in-gitlab-products

Critical vulnerabilities in GitLab Products   Alert

Jan 15, 2024 - The Australian Signals Directorate’s (ASD's) Australian Cyber Security Centre (ACSC) is aware of critical vulnerabilities affecting GitLab Community Edition (CE) and Enterprise Edition (EE). Customers should update to a patched version immediately and enable multi-factor authentication for all GitLab accounts.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/remote-code-execution-vulnerability-present-mshtml-component-microsoft-windows

Remote code execution vulnerability present in Fortinet devices   Alert

Oct 13, 2022 - A vulnerability (CVE-2022-40684) has been identified in several Fortinet products running certain versions from 7.0.0 onwards, that could allow a malicious cyber actor to bypass authentication and perform unauthorised actions. Affected Australian organisations should apply the available patch and follow Fortinet’s mitigation advice.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/remote-code-execution-vulnerability-present-sophos-firewall

Remote code execution vulnerability present in Sophos Firewall   Alert

Mar 30, 2022 - A vulnerability (CVE-2022-1040) has been identified in Sophos Firewall prior to version 18.5 which could allow a malicious cyber actor to perform remote code execution. Affected Australian organisations should apply the available patch.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/sonicwall-breach

SonicWall Breach   Alert

Feb 4, 2021 - SonicWall identified an internal systems breach using a zero-day vulnerability within the SMA 100 series 10.x code.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/active-exploitation-vulnerable-sitecore-experience-platform-content-management-systems

Active exploitation of vulnerable Sitecore Experience Platform content management systems   Alert

Nov 5, 2021 - There is active exploitation of a vulnerability occurring in certain versions of Sitecore Experience Platform systems. Affected Australian organisation should apply the available security update.

Organisations & Critical Infrastructure
Government
/about-us/alerts/critical-vulnerability-certain-hikvision-products-ip-cameras

Critical vulnerability in certain Hikvision products, IP cameras   Alert

Sep 22, 2021 - A critical vulnerability exists in Hikvision products, including IP cameras, which could allow a cyber actor to take full control of the device. Affected Australian customers should apply an appropriate firmware update provided by Hikvision.

Individuals & families
Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/alerts/suspected-user-credentials-stolen-fortinet-devices-leaked-online

Suspected user credentials stolen from FortiNet devices leaked online   Alert

Sep 10, 2021 - A malicious cyber actor has leaked a list of suspected user credentials and IP address of the associated FortiNet SSL VPN device the credentials are used for. Organisations should review the patch status and history of internet exposed FortiNet SSL VPN devices and consider performing a password reset for affected users.

Organisations & Critical Infrastructure
Government
/about-us/alerts/active-exploitation-critical-vulnerability-citrix-application-delivery-controller-and-citrix-gateway

Active exploitation of critical vulnerability in Citrix Application Delivery Controller and Citrix Gateway   Alert

Jan 13, 2020 - The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) is aware of ongoing attempts to exploit a critical vulnerability in Citrix Application Delivery Controller (ADC) (formerly known as NetScaler ADC), Citrix Gateway (formerly known as NetScaler Gateway) and Citrix SD-WAN WANOP.

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/news/new-information-security-manual-format-now-available

New Information Security Manual format now available   News

Sep 15, 2022 - The Information Security Manual (ISM) provides organisations with a cyber security framework that they can apply to protect their systems and data.

Small & medium businesses
Organisations & Critical Infrastructure
Government
/about-us/view-all-content/news-and-media/new-zero-trust-guidance-seeking-industry-feedback

New zero trust guidance – seeking industry feedback   News

Feb 10, 2025 - Have your say on new Foundations for modern defensible architectures, including zero trust and secure-by-design principles.

Organisations & Critical Infrastructure
Government
/business-government/small-business-cyber-security/small-business-hub/small-business-cloud-security-guides/technical-example-multi-factor-authentication

Technical example: Multi-factor authentication   Publication

Dec 16, 2022 - Multi-factor authentication (MFA) makes it harder for adversaries to use compromised user credentials to access an organisation’s systems. It is one of the most important cybersecurity measures an organisation can implement.

Small & medium businesses
/about-us/news/staying-secure-online-during-back-school-shopping

Staying secure online during back-to-school shopping   News

Jan 19, 2021 - Parents are being urged to be vigilant while shopping online for school essentials this month, with back-to-school shopping opening up opportunities for cybercriminals to strike.

Individuals & families
/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
/business-government/small-business-cyber-security/small-business-hub/small-business-cloud-security-guides/technical-example-application-control

Technical example: Application control   Publication

Dec 16, 2022 - Application control restricts the ability of an application to run or install on a device. Application control makes it harder for users to intentionally or unintentionally install unwanted or malicious software.

Small & medium businesses
/about-us/view-all-content/alerts-and-advisories/ivanti-sentry-authentication-bypass-vulnerability

Ivanti Sentry Authentication Bypass Vulnerability   Alert

Aug 22, 2023 - An authentication bypass vulnerability (CVE-2023-38035) has been identified that allows unauthorised access to sensitive APIs which can be used to set configuration parameters on the administrator portal (MICS).

Small & medium businesses
Organisations & Critical Infrastructure
Government

Pagination

  • First page « First
  • Previous page ‹‹
  • …
  • Page 15
  • Page 16
  • Page 17
  • Page 18
  • Current page 19
  • Page 20
  • Page 21
  • Page 22
  • Page 23
  • Next page ››
  • Last page Last »
Report a cyber security incident for critical infrastructure
Get alerts on new threats Alert Service
Become an ASD Partner
Report a cybercrime or cyber security incident
Acknowledgement of Country Circle
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.

Australian Cyber Security Hotline 1300 CYBER1 (1300 292 371)
  • Contact us
  • Glossary
  • View all content
  • Copyright
  • Privacy
  • Accessibility
  • Disclaimer
  • Careers
  • Social media terms of use

Popular pages

  • Essential Eight
  • Alerts and advisories
  • Information Security Manual
Authorised by the Australian Government, Canberra