National Security Hotline (NSH)

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The NSH operates 24 hours a day, 7 days a week and is the central point of contact to report concerns about possible signs of terrorism and foreign interference in our community.

You can report issues to the NSH that you think might pose a threat to our national security. This could include, but is not limited to:

    • someone threatening ​to harm people or damage infrastructure
    • websites or social media promoting violent extremist ideology
    • excess purchasing of chemicals or other dangerous materials
    • suspicious travel planning or abandoned luggage
    • someone you’re concerned is at risk of becoming radicalised
Foreign interference
    • community members being intimidated or harassed by someone linked to a foreign government
    • surveillance of protest activity or threats to political activists
    • someone being coerced to return to their home country
    • unauthorised people trying to access sensitive information or places

​If you have information or an enquiry​ relati​​ng to police checks, visas, travel advice, scams, or customs issues, please refer to the contact table below.


The smallest piece of information can assist an investigation. Terrorism and foreign interference are complex problems. It can be hard to know what might be important.

What you tell us could be vital, and we will always take you seriously.

NSH operators will know what to do with the information you provide . When necessary and where permitted by law, they will pass your information onto law enforcement and security agencies for further analysis. The NSH provides a reporting function and cannot provide advice or information on specific operational or intelligence matters, including the status or outcome of your report.


We know that reporting a matter of concern can be a big step. We take your right to privacy very seriously. Tell the operator if you want to remain anonymous.

For more information on how we use and disclose your personal information, you can read the National Security Hotline’s Privacy Notice.

Contact det​ails​​

PHONE:​ 1800 123 400
EMAIL: hotline@nationalsecurity.gov.au
SMS: 0429 771 822
National Security Hotline
​Department of Home Affairs
PO Box 25
Belconnen ACT 2616

If you are travelling overseas and become aware of threats to Australia’s security, you can contact the hotline toll-free on (+61) 1300 123 401.

If you need an interpreter, call the Translating and Interpreting Service on 131 450. You can ask them to call the National Security Hotline on 1800 123 400.

For TTY users, call 1800 234 889.

If your enquiry does not relate to National Security the below table may assist:

​​​​If you are seeking assistance ​with:
Police, fire or ambulance response to a life-threatening emergency, or report a crime in progressPhone 000​​​

Reporting a crime, or getting advice about local security and safety issues in your community

Phone your local police on 131 444, or Crime Stoppers on 1800 333 000


Suspicious or illegal immigration, customs and border-related activityContact Border Watch at australia.gov.au/borderwatch


Travel, whether leaving or coming into Australia, COVID-19 and travel restrictions, Australian passport queries

Visit Smartraveller for worldwide travel advice at www.smartraveller.gov.au

Australian Passport Information Line:
Ph: 131 232 (Mon-Fri, 8:00am – 9:00pm local time)
Website: www.passports.gov.au



Visas and citizenship, including the progress of your application, visa extensions, and other visa options available

Contact Home Affairs Global Service Centre

(from within Australia): Ph: 131 881 (Mon-Fri, 9:00am – 5:00pm local time)

(from outside of Australia): Ph: +61 2 6196 0196


Scams and cybercrime

Visit via the Australian Competition & Consumer Commission (ACCC) website at www.scamwatch.gov.au.

Visit ReportCyber via the Australian Cyber Security Centre (ACSC) website at https://www.cyber.gov.au/acsc/report.

Visit www.StaySmartOnline.gov.au for further information about how to protect you, your family and your business online.



Individuals defrauding welfare, child support, Medicare or Centrelink payments

Contact Fraud tip-off line on 131 524

(Mon-Fri, 8:00am-5:00pm local time)

For further information, visit: https://www.servicesaustralia.gov.au/individuals/contact-us/reporting-fraud


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