‘Calls From Beyond the Grave’: Mystery Telstra Glitch Floods Phones of Ministers, Police Chiefs and Grieving Families With Phantom Alerts, Sparking Cyber Attack Panic
- Thousands of Telstra customers, including senior bureaucrats, ministers and high-ranking police, were bombarded with missed-call and voicemail alerts for calls that were never made
- A Hunter Valley woman was left shaken after her phone said she had missed a call from her father, who died in 2018
- Telstra insists it was not hacked and blames a fault in its MessageBank voicemail service, but customers say the damage to trust is done
- The malfunction comes just months after a crippling national outage forced Telstra’s chief executive to cut short an overseas family holiday
The phone lit up. Then it lit up again.
And again.
Across the country, Australians watched their screens fill with notifications they could not explain.
There were missed calls from colleagues who had not rung in days, voicemail alerts from spouses sitting on the same couch, and, most chilling of all, calls from people who are no longer alive.
For a nation still scarred by some of the worst data breaches in its history, the first thought for many was unavoidable. Had Telstra been hacked?
The telecommunications giant moved quickly to say no.
The real culprit, it said, was a technical failure inside MessageBank, its voicemail platform, which spat out a backlog of delayed notifications all at once on Wednesday.
But by then, the panic had already spread through Canberra’s corridors of power, police headquarters and grieving households alike.
Among those caught up were senior public servants, government ministers, political advisers and high-ranking police officers. All found themselves staring at alerts suggesting they had missed calls from contacts who had never dialled them.
For April, from the Hunter Valley in NSW, the experience was deeply personal. Her phone told her she had a missed call from her father, Les.
He died in 2018.
Speaking to Channel Seven’s Sunrise, she said she had no idea what was happening, but described being jolted by alerts from people who are gone.
She warned that such messages could drag painful memories back to the surface, forcing people to relive tragedies they should never have to revisit, and said Telstra must answer for it.
Elsewhere, the glitch caused chaos of a more domestic kind. One woman complained online that the telco had started a fight in her home, after two missed calls appeared from her husband’s phone.
The device, she said, was charging in another room at the time.
Late on Wednesday, Telstra declared the problem fixed and confirmed it had opened an investigation.
In a public update, the company acknowledged customers had received a flood of delayed notifications, apologised for the confusion and stressed that Triple Zero, ordinary voice calls and mobile data had not been affected.
The response did little to calm nerves. The post attracted close to 3,400 comments, many of them furious.
One customer said that while the explanation was welcome, receiving around ten alerts from family, friends and workmates had convinced many people they were victims of a major breach.
A real estate agent in Far North Queensland raised a more practical complaint, asking how anyone was supposed to tell genuine calls needing a response from Telstra’s errors.
The timing could hardly be worse for the company.
In July, a national outage left millions of Telstra customers unable to make calls, use mobile data or process electronic payments, freezing businesses and households across the country.
The fallout was so severe that chief executive Vicki Brady abandoned an overseas holiday with her family and flew home to manage the crisis.
That disruption itself followed years of mounting anxiety about the resilience of Australia’s telecommunications backbone.
Memories remain fresh of the massive Optus outage in late 2023, which knocked out phones, internet and even some emergency call access for millions, along with the high-profile data breaches at Optus and Medibank in 2022 that exposed the personal details of millions of Australians.
Against that backdrop, it is little wonder a sudden wave of unexplained alerts triggered instant fears of a cyber attack.
Analysis: What This Means for Australia
On the surface, this was a voicemail fault. Beneath it lies a far more uncomfortable question about the reliability of the systems that keep the country running.
Telstra is not just another company. It operates critical national infrastructure relied upon by government departments, emergency services, hospitals and defence-linked agencies.
When ministers and senior police officers cannot trust what their phones are telling them, even for a few hours, it becomes a matter of national security.
Consider the risk. A flood of false notifications creates noise, and noise is exactly what bad actors exploit.
Officials scrambling to work out which alerts are real could miss urgent messages, or return calls to contacts in ways that create confusion during sensitive operations.
There is also the danger of desensitisation. If Australians learn to dismiss strange alerts as just another glitch, they may be slower to react when a genuine compromise occurs.
Scammers, already costing Australians enormous sums through phone scams, thrive in precisely this kind of uncertainty.
For businesses, the economic toll is real. Tradies, real estate agents and small operators who depend on returning calls quickly were left sifting through phantom alerts, unsure which leads were genuine.
And for communities, the human cost cannot be dismissed. Bereaved families were confronted with digital ghosts of loved ones, an intrusion that no apology fully undoes.
The incident is likely to sharpen scrutiny from regulators such as the Australian Communications and Media Authority, which oversees telecommunications standards, and renew pressure under the critical infrastructure framework requiring major operators to prove their systems can withstand both attacks and internal failures.
Security analysts say the episode highlights how easily a technical fault can mimic the symptoms of a cyber intrusion, and warn that public confidence in such moments is fragile.
They argue telcos must communicate faster and more clearly, because silence lets fear fill the gap.
Law enforcement insiders warn that police and senior officials depend on dependable communications, and that any disruption, however harmless in origin, exposes vulnerabilities worth examining. Some say agencies should review whether key personnel need backup channels independent of a single carrier.
Industry observers believe the repeated failures in a single year will intensify calls for tougher accountability, including mandatory reporting and penalties for major service faults.
Many point to guidance from the Australian Cyber Security Centre urging organisations to build resilience not only against hackers, but against their own systems breaking down.
Telstra says its investigation is under way.
For the customers who spent Wednesday wondering whether their phones had been hijacked, or why a dead father had seemingly reached out, the answers cannot come soon enough.
Do you know more? Email [email protected]