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Telco Scams

Written & reviewed by Reuben Schultz, FounderLast updated 1 October 2026

Calls, texts and emails posing as your phone or internet provider, or the NBN, claim your internet has been hacked, your service is about to be disconnected, a bill is overdue or a refund is waiting. The aim is remote access to your computer, your card or banking details, or control of your mobile number through a SIM swap or port. The check that works is to open your provider's app, or call the number printed on a real bill.

This guide explains how the scam works, the warning signs to watch for, and what to do if you've been caught out. Got a specific message in front of you? Check it now and get an instant verdict.

How this scam works

Telco scams borrow how real providers behave. Telstra says it often calls customers to review their accounts, tell them about new products, or let them know an account is overdue, so contact from a provider is not unusual in itself. The remote-access version starts with a fright: Telstra describes a caller convincing you that your IP address has switched from 'private' to 'public' and that you are at risk, a trick to get remote access to your computer and home network. Optus says these callers often phone claiming to be from a technology company, internet provider or government agency, and ask you to install software that gives them remote control of your device. The disconnection version adds a threat: Vodafone and TPG describe robocalls posing as NBN Co or an internet provider that threaten to disconnect your service unless you give personal information or pay. The bill version comes by text: ACMA says telco impersonation texts sometimes look like a fake bill or say you have a problem with your account, with a link to a site that asks for your login or financial details, while others dangle a bonus, reward points or another prize. The most damaging version targets your number: ACMA says a criminal with your personal information can steal it through a SIM swap or an unauthorised port, then receive SMS verification codes for your bank, email and social media. None of the surface details proves the sender, because ACMA says scammers can disguise their number and send texts that appear in the same thread as real ones, and names and account details leak in data breaches. Check in your provider's app, or call the number printed on a real bill.

What the scam looks like

These composed examples show how the scam typically reads, with the tells that give each one away. Compare them against anything you've received.

Example scam phone callExample only. Not a real message.

An automated voice says suspicious activity has been detected on your internet connection and your service will be disconnected within 24 hours. Press 1 to speak to a technician. The 'technician' says your IP address has been compromised and asks you to install a free support app, then read out its code.

What gives it away:

  • A robocall with a menu and a disconnection threat is a pattern Telstra, Vodafone and TPG each describe in their scam warnings
  • The app and its code give a stranger control of your device and anything you open while they watch
  • Hang up and check your account in your provider's app, or call the number on a real bill
Example scam text messageExample only. Not a real message.

Hi Sam, your mobile account is overdue by $89.20 and your service will be suspended today. Pay now to stay connected: provider-bill-pay[.]example/8Kd or call 1300 000 000.

What gives it away:

  • ACMA says telco impersonation texts sometimes look like a fake bill or say there is a problem with your account, and push urgency
  • A first name and an exact amount prove nothing, because names and balances leak in data breaches
  • The link and callback number come from the message itself; ACMA says to use contact details you confirm yourself, such as an official website, a bill or a secure app
Example scam phone callExample only. Not a real message.

A caller says they are from your mobile provider's fraud team. A request to move your number to a new SIM has just been made, and to cancel it you must read out the six-digit code you have just been texted.

What gives it away:

  • Vodafone and TPG both say they won't contact you to request a SIM swap or ask you to provide a one-time code
  • ACMA says a telco can confirm a port or SIM swap with a code sent by SMS; that code checks a request, so it isn't something to read out to a caller who rang you
  • A 'fraud team' that rings you creates the emergency; hang up and use your provider's app or a number on a real bill

Who gets targeted, and when

Anyone with a phone or internet account, which is nearly everyone, so a robocall or text sent at random still reaches real customers of the provider it names. NBN Co said in August 2024 that Australians aged 65 and over accounted for 86 per cent of losses due to nbn impersonation scams reported to the National Anti-Scam Centre through Scamwatch from January to July 2024.

These scams run all year but borrow real events. Aussie Broadband says one disconnection call is confusing because the nbn really is removing legacy copper connections. NBN Co said in August 2024 that scammers had started targeting areas where its technicians were working on fibre installations and upgrades.

How to spot it

  • A call saying your internet has been hacked, your IP address is compromised or your service will be disconnected, often a robocall with a 'press 1' menu; Telstra, Vodafone and TPG describe these, and NBN Co says it won't call to say your connection has been hacked
  • A request to install remote-access software or let someone connect to your computer; NBN Co lists AnyDesk, TeamViewer / QuickSupport and Windows Quick Assist among the tools scammers ask for
  • An overdue-bill or 'account suspended' text with a pay-now link or callback number
  • A bonus, reward points, refund or credit you must claim through a link or a call; Vodafone and TPG say they won't call and ask for your credit card details for refunds, reimbursements or compensation
  • A caller or text asking for a one-time code or a SIM swap you didn't request; Vodafone and TPG say they won't contact you to request a SIM swap or ask you to provide a one-time code
  • Your phone losing service, or showing 'SOS only', when it normally has reception; ACMA says that can mean someone has stolen your number
  • Someone at the door or on the phone posing as an NBN technician and asking for a fee to fix or upgrade equipment or book an appointment; NBN Co said in 2024 that scammers had been reported doing this where its technicians were working

What to do if you have been targeted

  1. If you paid or shared card or bank details, call your bank immediately to block the card and dispute the payment
  2. If you installed remote-access software or let someone connect, disconnect that device from the internet, uninstall the software, run a security scan and change your passwords (including bank and email) from a different device
  3. If your phone loses service or shows 'SOS only', ask your telco straight away whether your number was ported or swapped; ACMA says to ask it to reverse a port, or deactivate the SIM and send you a new one
  4. If you shared identity details such as your date of birth or licence, contact IDCARE (idcare.org) for free identity support
  5. Report the scam to your provider, to Scamwatch (scamwatch.gov.au), and to ReportCyber (cyber.gov.au) if you lost money

Where to report it

  • Scamwatch — Report the scam to the ACCC's national scam service.
  • ReportCyber — Report cybercrime and financial loss to the police.
  • ACMA — Complain about scam texts and spam SMS, email or calls.
  • Forward to 7226 (SCAM) — Forward the scam SMS to short code 7226 so carriers can block the source.
  • IDCARE — Free identity and cyber support if your details were taken.

How to protect yourself

  • Check any bill or notice in your provider's app or online account before you pay or reply; Telstra calls its app the most secure way to get in touch, and Optus recommends its app as your trusted secure channel
  • Don't use the number or link in a message; ACMA says to check by contacting the business using details you confirm yourself, such as an official website, a bill or a secure app
  • If a call about your computer or internet asks for remote access, hang up, as ACMA and NBN Co advise, then contact your provider using details from its official website
  • Treat a code like a password. ACMA says a telco can confirm a number port with a unique SMS code, which checks a request you made; Telstra advises not to reveal one-time codes unless you started the call or transaction
  • Treat 'Unverified' at the top of a text as a reason to slow down, not a verdict; ACMA says it may be a scam or a real business that hasn't registered its sender ID, and texts from ordinary phone numbers aren't covered
  • If someone turns up saying they're from nbn, NBN Co says to ask to see their digital ID card first; it's one check, so confirm with your own provider too
  • Forward scam texts to 7226 (spells SCAM) then delete them, and turn on two-factor authentication for banking and email, as ACMA advises

Telco Scams in 2026

ACMA said in November 2024 that it was seeing a rise in SMS telco impersonation scams, naming Optus, Vodafone and Telstra among the brands copied. Since 1 July 2026, ACMA's SMS Sender ID Register marks branded texts from unregistered senders as 'Unverified', which helps but settles nothing on its own. Vodafone and TPG also show a 'Suspected Scam' banner on some calls, and say it won't catch every scam call. Opening your provider's app, or calling the number on a real bill, still settles it.

Related brands targeted by this scam

Scammers often impersonate these names in telco scams. Here's how to tell a genuine message from a fake:

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Frequently asked questions

A caller says my internet has been hacked and my IP address is compromised. Is that real?

It matches a known scam. Telstra describes calls claiming a problem with your IP address, or that it has switched from private to public, as tricks to gain remote access, and NBN Co says it won't call to say your connection has been hacked. Hang up, install nothing, and check your account in your provider's app.

The NBN rang to say my internet will be disconnected. Is that real?

NBN Co says it won't call and ask to access your computer or advise you that you're going to be disconnected, and won't use a robocall to say so. Vodafone, TPG, Telstra and Aussie Broadband all describe these calls as scams, and Aussie Broadband notes the nbn really is removing legacy copper connections. Hang up and ask your own provider.

Can NBN Co sell me a plan or take payment from me?

NBN Co says the nbn network is a wholesale network and that it does not directly sell phone or internet services. It adds that in limited circumstances it may accept direct payment for services you requested directly, such as some network infrastructure change applications, and that it won't ask for payment to secure a connection, appointment, service visit, new modem or equipment postage.

A text says my phone or internet bill is overdue and my service will be suspended. Is it real?

It might be genuine, which is why the scam works: Telstra says it does call customers about overdue accounts. But ACMA says telco impersonation texts sometimes look like a fake bill, and Vodafone describes a scam text about a recent payment issue with a link to pay. Skip the link or number, and check in your provider's app or on a real bill. If nothing is overdue there, the text was a scam.

Someone offered me a refund or bill credit. Is that a scam?

Be wary. Vodafone and TPG say they won't call and ask for your credit card details for refunds, reimbursements or compensation, and Vodafone says refunds go only through your original method of payment. Telstra describes a refund scam where you're offered money back for a fake invoice and asked for card details, and the criminals charge your card instead.

How can I tell if someone has swapped my SIM or ported my number?

ACMA says your number may have been stolen if you can't make or receive calls or messages when you usually can, or your phone shows 'SOS only' where the reception bars usually appear. Check your account is active and for network incidents, then tell your telco immediately. Tell your bank too: ACMA says a criminal holding your number can receive SMS verification codes.

How do I report a telco scam?

Tell your provider through its app or the number on a real bill, report the scam to Scamwatch at scamwatch.gov.au, and forward scam texts to 7226 (spells SCAM). If you lost money, call your bank first, then report to ReportCyber at cyber.gov.au.

Scam message examples

Related scam types

Other scams hitting Australians right now — know the warning signs:

Sources

This guide is general information, not legal or financial advice — if you've lost money, contact your bank and the reporting channels above straight away.

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