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Duo Security

Duo - Phone call and SMS authentication issues - Australia

Degraded Lasted 15h 46m · started · Duo Security's page

Level
confirmed
Worst impact
Degraded
Components
Phone Call Delivery, SMS Message Delivery
Regions
au
Down Index
27of 100

What to do

  • Check whether you use Duo Security Phone Call Delivery, SMS Message Delivery in au. Check your stack

    Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
  • Confirm your retries, queues and scheduled jobs caught up after the 15h 46m it lasted.

    Anything that failed between 2026-07-07 23:15 UTC and 2026-07-08 15:01 UTC may need a replay.
  • Subscribe to Duo Security's feed to hear about the next one first. RSS feed

    https://down.guide/feed?provider=duo works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Duo Security 3

  1. investigating

    We are investigating a third-party carrier issue affecting VoIP and SMS services in the Australia region. Customers in Australia may experience delays or failures when using phone call or SMS authentication. Other Duo authentication methods, such as Push Delivery, are not expected to be impacted and can be used as an alternate method of authentication if available. Our team is monitoring the carrier issue and working with the provider as needed. Updates and additional details will be provided as new information becomes available. We appreciate your patience and understanding during this time.

    provider

  2. monitoring

    The third-party carrier has indicated that the issue affecting VoIP and SMS services in the Australia region has been resolved. Customers in Australia should see improved delivery for phone call and SMS authentication. Other Duo authentication methods, such as Push Delivery, remain available as alternate authentication methods if configured. We are continuing to monitor service stability and will provide additional updates when the incident is fully resolved.

    provider

  3. resolved

    The third-party carrier issue affecting VoIP and SMS services in the Australia region has been resolved. Phone call and SMS authentication services are operating normally. We appreciate your patience and understanding while we addressed this issue.

    provider

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Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.

Questions about DWN-f40ec166c1

Is Duo Security still down?

No, this incident was resolved 2026-07-08 15:01 UTC. For Duo Security's live state, see https://down.guide/duo.

How long did it last?

15h 46m, from 2026-07-07 23:15 UTC to 2026-07-08 15:01 UTC, by the times Duo Security posted.

What was affected?

Duo Security named Phone Call Delivery, SMS Message Delivery in au.

What caused it?

Duo Security hasn't published a root cause. If it does, it shows here.

Where does this come from?

Duo Security's official status page, https://status.duo.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.