Optus NBN, 5G and 4G home internet modems
To report a cybersecurity issue with your Optus modem, please email security.standards@optus.com.au with:
- Name of the impacted device (You can find this written on the sticker attached to your modem)
- The date you purchased the device
- When you first noticed the security issue
- A brief description of the issue
Optus may use the personal information you provide including your email to investigate or take action to address the potential security issue you have raised. For more details on how we handle your personal information, please visit our Privacy Policy.
If your modem was manufactured before 4 March 2026, please call us on 133 937 to speak with one of our agents.
After you send us your email, we’ll acknowledge it within 5 business days and update you every 30 days until the issue is resolved.
Devices from other manufacturers
If you purchased a device from Optus that was made by another manufacturer including mobile devices, watches and tablets, and you believe you’ve identified a security issue, please contact the manufacturer directly with the details of your concern.