Voicemail scams: how to spot a fake voicemail, including AI voices

A voicemail scam is a recorded message that pretends to come from a bank, a government agency, a delivery company or a relative, and pushes you to call back, press a number or pay fast. It is vishing in recorded form. The safe response is the same every time: do not use the number in the message, look up the real one yourself, and check any voice that sounds familiar but asks for money.

Most scam voicemails want one thing: a callback on their terms. Here are the common scripts, the tells, how AI cloned voices change the picture, and what to do with a message you are not sure about.

By the AI Voice Detector Editorial Team · Sources checked November 2026 · Vishing cluster

What is a voicemail scam?

A voicemail scam is a form of vishing (voice phishing) delivered as a recorded message rather than a live call. The scammer leaves a message that creates urgency, gives a callback number they control, and waits. The recording does work a live call cannot: it reaches people who never answer unknown numbers, it can be sent in bulk, and it gives the target time to talk themselves into calling back.

The message is the bait, not the theft. The money, codes or personal details are taken on the callback, by a live person reading from a script.

What are the most common scam voicemails?

Scam voicemail	What it says	What it wants	The tell
Tax or IRS	A last chance to settle back taxes before legal action	Your Social Security number, or an upfront fee for "tax relief"	The IRS's first contact is by mail, not a phone message (FTC, January 2026)
Social Security	Your number is suspended or linked to a crime	Personal details, gift cards, a wire or a crypto payment	The real SSA does not threaten you or ask for gift cards or crypto (FTC)
Bank fraud alert	Suspicious activity on your account, call back to secure it	Card details, a one-time passcode, a transfer to a "safe account"	Banks never ask you to read back a code or move money to protect it
Delivery or order problem	A parcel is held, or an order on your account needs confirming	Card details or remote access to your device	You did not place the order; the real company's app shows nothing
One-ring callback	No message, or a few seconds of silence, from an unfamiliar number, often international	A callback that runs up per-minute charges	The FCC advises never calling back an unfamiliar number from a single ring (FCC)
Family emergency	A relative in trouble, often in a voice that sounds like theirs	Bail, a lawyer's fee or a hospital payment, fast and secret	Urgency plus secrecy; the relative is fine when you call their own number
Official or executive	A message from a senior official or your boss, building trust before a request	A move to another app, a link, or a payment	The FBI has warned of AI voice messages impersonating senior US officials (FBI, May 2025)

For documented cases with losses and sources, see real vishing examples.

How can you tell if a voicemail is fake?

Judge the request, not the sound. Any one of these is a reason to stop; two together, treat the message as a scam.

It gives you a number to call back. Real institutions are happy for you to use the number on your card, statement or their official website.
It sets a deadline in hours. "Today", "within the hour", "before a warrant is issued".
It asks for an unusual payment. Gift cards, crypto, a wire, a payment app transfer to a stranger.
It asks for a code or a password. No one legitimate needs a one-time passcode read back to them.
It is vague about you. "Your account", "your package", with no name, partial account number or order reference you recognise.
The caller ID looks right. That proves nothing: caller ID can be spoofed (FCC).

Can a scam voicemail use an AI voice?

Yes. A voicemail is the easiest place to use a cloned voice: there is no live conversation to keep up, so a few generated sentences in a familiar voice can do the job. The FTC has warned that scammers can clone a relative's voice from a short clip posted online (FTC, March 2023), and the FBI's 2025 warning described AI-generated voice messages sent to build trust before a request (FBI).

You may hear flat emotion, odd breathing, a background that never changes or a mispronounced name, but these tells are unreliable on a phone line. Two things work better:

Call the person back on the number you already have. A cloned voice cannot answer the real person's phone.
Save the voicemail and check it. An AI voice detector scores a saved recording for signs of synthesis and gives a verdict and an AI probability score. A synthetic result is a reason to stop. A human result does not make the request safe.

More on how voices get copied in what voice cloning is.

Why do scam voicemails ask you to call back?

Because the callback is where the scam happens. Calling back puts you on a line the scammer controls, with a live person who can answer questions, handle doubts and keep you talking until you pay or read out a code. Some numbers also charge per minute, which is the whole point of one-ring scams. A recorded message cannot steal anything on its own; your callback is the step it is designed to produce.

What should you do with a suspicious voicemail?

Do not call the number in the message and do not press any key it asks you to press.
Look up the real number yourself: your card, a statement, the official website or app, or a contact already in your phone.
Keep the voicemail. Do not delete it until you have reported it; it is evidence, and you can check it with a detector.
Report it. In the US, to the FTC at ReportFraud.ftc.gov and to the FCC at consumercomplaints.fcc.gov; if money moved, also the FBI at IC3 and your bank straight away.
Warn the people around you. Scam crews reuse lists, and the next message often goes to a relative or a colleague.

The full checklist, including what to do if you already called back or paid, is in how to protect yourself from vishing.

Frequently asked questions

What is a voicemail scam?

A voicemail scam is a recorded phone message that pretends to come from a trusted organisation or person and pushes you to call back, press a key or pay quickly. It is a form of vishing. The theft happens on the callback, so the safe move is to ignore the number in the message and contact the organisation through a number you look up yourself.

Can you get scammed by listening to a voicemail?

Listening to a voicemail does not take your money or data. The risk comes from what you do next: calling the number in the message, pressing a key, or giving details on the callback.

Can scammers leave a voicemail in someone else's voice?

Yes. AI voice cloning can produce a short message in a voice that sounds like a relative, a boss or an official. The FTC has warned about cloned voices in family emergency scams. Call the person back on a number you already have before acting on the message.

How do I know if a voicemail is AI generated?

By ear it is often hard to tell. Save the voicemail and check it with an AI voice detector, which returns a verdict and an AI probability score for the recording. Then verify the request by calling the person or organisation on a number you already trust; a human result does not make a request safe.

Should I call back a number that rang once and hung up?

No. The FCC advises against calling back unfamiliar numbers from a single ring, especially international ones, because the callback can run up charges. If you think it might be someone you know, contact them on a number you already have.

Where do I report a scam voicemail?

In the US, report it to the FTC at ReportFraud.ftc.gov and to the FCC at consumercomplaints.fcc.gov. If you lost money, also report to the FBI's IC3 and contact your bank immediately. Keep the voicemail as evidence.

Got a voicemail you are not sure about?
Save it and run it through the free detector for a probability that the voice was machine-generated, then call back on a number you already trust.

Check a voicemail