Telstra's national mobile and data outage on 8 July has been resolved, but the company is now warning customers about scammers exploiting the disruption.

• What happened: A software defect, not a cyberattack, knocked out mobile calls and data nationwide on 8 July, disrupting some Triple Zero emergency calls and affecting transport and payment systems that rely on Telstra's network.
• Current status: Telstra confirmed its network was fully restored by 4pm on 8 July, with an additional fix applied for the Triple Zero issue on 9 July.
• The new risk: Telstra is reporting fraudsters calling customers, posing as Telstra staff, and using the outage as a pretext to request personal or account details.
• What to do: Do not provide personal details to anyone calling about the outage. If you receive such a call, hang up and contact Telstra directly using the number on your bill or their official app.

If your business relies on Telstra mobile or data services for critical operations, this is a good prompt to review your backup connectivity options.