Table of Contents

Essentials to know
- Watch for “red flag” tactics: Modern scams rely on high pressure, secret requests, unexpected links/attachments, or sudden changes to payment details – often using public business info or polished AI tools to sound authentic.
- Beware the verification-code trap: Scammers try to hijack business accounts by tricking you into sharing your 6-digit WhatsApp registration code; never share this PIN under any circumstances.
- Verify AI deepfakes and audio: Voice notes and calls can now be convincingly faked using AI. Always independently call the person back on a known, saved number and establish a private “safe word” for urgent requests.
- Treat desktop attachments & links with caution: Malicious files labelled as “invoices” or fake updates like “WhatsApp Gold” can compromise your PC; only update via official app stores and verify unexpected documents before opening.
- Separate personal & business communications: Isolating work chats from personal messages using a dedicated business number (like YourBusinessNumber) makes out-of-place scam attempts instantly easier to spot.
How confident are you that you could spot a WhatsApp scam?
We’re all tempted to think we’d never fall for one, but these days, modern scams aren’t always badly written messages from obviously fake numbers. They’re designed to reach you when you’re busy, distracted, or trying to deal with a customer quickly.
For Australian small business owners, the stakes can be even higher. A scammer might pose as a supplier who has changed their bank details, a customer sending proof of payment, or a member of staff who needs an urgent transfer. They may also try to steal your WhatsApp Business account, giving them access to a trusted number they can use to target your customers and contacts.
So, what should you be looking for? Read on to learn how WhatsApp scams work, which tactics are common across Australia, and what to do if your business is targeted.
The anatomy of a WhatsApp scam: red flags to watch for
WhatsApp scams come in many forms, but most rely on the same basic ingredients: trust, pressure, and a request that takes you outside your normal process.
The scammer may impersonate someone you know, use the logo of a familiar organisation, or refer to real details about your business. Information from your website, social media pages, ABR/ASIC company listings, or public reviews can all make the story sound more believable.
Most commonly, scam messages will:
- Create an emergency or threaten immediate consequences if you don’t take action now
- Ask you to keep the request secret
- Come from a familiar person using an unfamiliar number
- Claim that payment or bank details have suddenly changed
- Ask for passwords, registration codes, or 2-step verification PINs
- Include an unexpected link, QR code, or attachment
- Push you to pay using gift cards, cryptocurrency, or an instant transfer
- Offer a refund, rebate, prize, or opportunity you weren’t expecting
- Ask you to move a conversation away from an official platform
- Tell you not to call the person or organisation directly
Poor spelling can still be a warning sign, but you shouldn’t depend on it as a test. Today, AI tools can help criminals create polished, natural-sounding messages in accurate Australian English.
If a request asks for money, data, or account access, pause and verify it independently. Don’t use the number, link, or contact information supplied in the suspicious message; instead, call a number you already trust or visit the organisation’s official website yourself.
The verification-code trap: how scammers hijack business accounts
A WhatsApp account is registered using a six-digit code sent to the relevant mobile number. If someone is trying to register your number on another device, you may receive a code you didn’t request. The scammer then needs to persuade you to share it.
They may pretend to be a customer who sent the code accidentally, a colleague setting up a linked device, or a member of WhatsApp support checking your account.
Whatever the case may be, the rule is simple: never share a WhatsApp registration code. Without that code, the other person shouldn’t be able to complete the registration. If you receive a code unexpectedly, don’t reply to anyone who asks for it; instead, check your linked devices, turn on 2-step verification, and add an email address you control so you have another recovery route.
If the scammer succeeds, they may lock you out and start messaging customers, relatives, or suppliers from your trusted account. They could request payments, send phishing links, or claim your bank details have changed.
You can attempt to recover a compromised account by logging back into WhatsApp with your mobile number and following the verification process. WhatsApp provides current account-recovery instructions through its Help Centre.
AI voices and deepfakes: the new frontier of impersonation
A strange writing style used to be one of the easiest ways to spot an impersonation scam, but now, voice messages and video calls can feel much harder to question – especially when the person looks or sounds familiar.
AI tools can recreate a person’s voice using audio taken from social media, interviews, videos, or voicemail greetings. A scammer may then send a voice note or make a call that appears to come from a company director, employee, or relative.
For example, an admin worker might receive a message that sounds like the owner of the business, asking them to pay a confidential supplier invoice immediately. A family-run business may be told that a relative is in trouble and needs emergency funds.
Don’t rely on recognising someone’s voice. Security experts and consumer protection agencies recommend calling the person back using a saved number you already know to verify the story, rather than trusting the incoming call or message.
Businesses should also consider agreeing on a private safe word for unusual or urgent requests. Keep it private, don’t include it in emails or public documents, and change it if you think it has been exposed.
For higher-value payments, use a two-person approval process. A convincing voice message shouldn’t be enough to bypass your normal financial controls.
“WhatsApp Gold” and fake updates: the malware threat
“WhatsApp Gold” is a long-running scam that promises access to an exclusive, premium, or upgraded version of WhatsApp. The message may claim the new app includes enhanced privacy, extra business tools, or features that aren’t available to ordinary users.
The truth is, there is no official WhatsApp Gold upgrade. Links in these messages may lead to fake sign-in pages, unofficial app downloads, or malicious software. Similar scams may claim that your version of WhatsApp is expiring or that you need an urgent security update.
Only update WhatsApp through the official Apple App Store, Google Play Store, Microsoft Store, or the official WhatsApp website. Don’t install an app or browser extension sent through an unexpected chat.
Scammers may also circulate chain messages warning about dangerous videos, account closures, or new fees. These are often designed to spread panic and encourage forwarding. Don’t pass them on simply because the message tells you to warn everyone you know.
Malicious attachments: why your PC or laptop could be a target
WhatsApp Business is often used to exchange invoices, job specifications, resumes, product lists, and order documents. That makes an attachment feel like a normal part of the working day, giving scammers useful cover.
A file labelled “invoice”, “delivery note”, “customer order”, or “price list” may contain malware or direct you to a fake sign-in page. The risk can be particularly easy to overlook when using WhatsApp Desktop on a computer, where the device may also contain customer records, saved passwords, and access to email or cloud-storage accounts.
Be especially cautious with unexpected executable files, compressed folders, and documents that ask you to enable macros or install software. Don’t assume a file is safe because it appears to come from a known contact – their account may have been compromised.
Before opening an unexpected business attachment:
- Confirm it with the sender through a trusted method
- Check whether the filename and format make sense
- Scan the file with up-to-date security software
- Keep your operating system, WhatsApp, and your browser updated
- Avoid using an administrator account for everyday work
- Back up important business data away from the main device
If you open a suspicious file, disconnect the affected computer from your network immediately, run a security scan, and change important passwords from a different, trusted device.
How to report and block a scammer without losing your data
Blocking someone stops them from calling or messaging you through WhatsApp, but it doesn’t automatically delete the existing conversation from your device.
Before blocking the scammer, preserve anything you may need as evidence. Take screenshots showing the number, profile, messages, links, payment details, and dates. If money has been sent, save the receipt and contact your bank immediately.
You can then open the contact or chat information and choose Report or Report and block. WhatsApp may receive recent messages from that conversation as part of the report. Reporting doesn’t notify the other person that you were the one who reported them.
If a link or attachment may have exposed business data, don’t treat blocking as the end of the incident. Change affected passwords, sign out of unfamiliar sessions, check linked WhatsApp devices, and tell anyone whose information may be at risk.
Common WhatsApp scams targeting Australian businesses
Australia Post and myGov scams
Fake delivery messages are a familiar tactic in Australia. A message may claim that an Australia Post parcel couldn’t be delivered or that you must pay a small fee before it can be released. For an Aussie small business expecting stock, tools, or customer returns, the message can arrive at just the right moment to feel believable.
myGov impersonation scams use a similar approach. You may be told there’s a problem with your account, tax information, or government payment, and directed to a fake sign-in page.
To avoid these scams, don’t use the link sent in the message. Check deliveries through the relevant delivery company app or website, and access myGov by typing the address directly into your browser. Scamwatch warns that phishing messages often impersonate governments or businesses, use urgent language, and link to websites designed to steal personal information.
The “Hi Grandma” AI voice scam
Australian businesses have already had to contend with “Hi Mum” messages (someone claiming to be a son or daughter who has lost or damaged their phone, hence the change of number, and needs help paying an urgent bill). AI voice cloning adds another layer by allowing scammers to imitate a child, grandchild, relative, or colleague.
A voice note might claim that someone has lost their phone, been involved in an accident, or needs an urgent payment. For a family business, the scammer may instead pose as the owner or a relative who helps manage the company finances.
It’s no longer enough to rely on recognising a familiar voice on the phone. Instead, agree on a safe word with relatives and key staff. If someone asks for money unexpectedly, call them on their usual number or speak to another trusted person who can verify the story. Don’t let claims of embarrassment, secrecy, or urgency stop you from double-checking.
For tradies and small business owners who are often answering messages from the ute or between jobs, it can also help to make a firm rule: no new bank details and no unusual payments without a second check.
Reporting to Scamwatch
Suspicious activity can be reported using the Scamwatch reporting form. Reports help the National Anti-Scam Centre identify patterns, warn others, and disrupt scams.
If you’ve lost money or shared financial information, contact your bank immediately. If personal information has been stolen, money has been taken, or someone is trying to extort you, you can also report the cybercrime to ReportCyber via cyber.gov.au or contact the police.
If your myGov account has been compromised, contact the Services Australia Scams and Identity Theft Helpdesk. You should also block and report the scammer within WhatsApp.
How can businesses stay safe on WhatsApp?
Luckily, you don’t need to treat every new customer like a criminal in order to stay safe on WhatsApp. A few consistent rules can remove many of the opportunities scammers rely on:
- Turn on 2-step verification and add a recovery email to your account
- Never share registration codes, passwords, or security PINs
- Review linked devices regularly
- Verify new bank details using a trusted contact method
- Use a safe word for urgent family or staff requests
- Require two approvals for larger or unusual payments
- Keep phones, computers, browsers, and WhatsApp updated
- Back up important business data
- Train staff to recognise phishing, quishing, and AI impersonation
- Keep personal and business communications clearly separated
- Contact your bank immediately if money has been sent
It’s a good idea to write these rules down rather than assuming everyone will remember them. A simple, pre-planned process is much easier to follow when someone is busy, under pressure, and a message appears urgent.
Is WhatsApp Business secure?
WhatsApp uses end-to-end encryption for personal messages and calls. However, most WhatsApp scams don’t break that encryption. They manipulate the person using the account.
A scammer doesn’t need to defeat WhatsApp’s security if they can persuade you to hand over a registration code, open a malicious attachment, or transfer money to a fake supplier.
That’s why account security needs to be supported by good business processes: independent checks, clear payment rules, staff training, and sensible separation between personal and professional communication.
Separate business and personal communication with YourBusinessNumber
A dedicated WhatsApp Business number can make suspicious messages easier to spot.
If a relative suddenly asks for emergency money through a number you only use for customers, you already have a reason to question it. If personal chats and supplier payments aren’t mixed, it’s easier to understand who should be contacting each number and why.
YourBusinessNumber helps you keep your personal mobile number private while giving customers a dedicated way to contact your business. Depending on your setup, you can use a second number for WhatsApp Business, customer calls, enquiries, and bookings.
That means clearer work-life boundaries, more professional communication, and one less opportunity for a convincing scam message to blend into the wrong conversation.
Ready to separate your work and personal messages? Grab a virtual number for WhatsApp or WhatsApp Business today.
Author:

George Lineker
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