Could that really be my grandson's voice on the phone?

Dan's phone rings. It's his grandma, and she's shaken.

“You just called me from jail, crying, asking for bail money!”

“Grandma, I'm not in jail! That wasn't me!”

But she heard his voice. So how?

“Follow the call,” says Liz.

A short clip is enough

A few months ago, Dan posted a video of his barbecue tips. Thirty seconds of him talking, cheerfully, about ribs.

That's all a scammer needs. Voice-copying tools, sold as AI voice generators, can learn how someone sounds from a short recording. Then the scammer types whatever they want (“Grandma, I'm in trouble, please send money”), and the tool says it in that voice. In 2024 OpenAI showed one that worked from a single 15-second sample, and others need less.

The copy doesn't have to be perfect, either. A panicked, crying voice on a bad line hides the small differences, and a worried grandparent isn't listening for them.

How the call goes

The story is almost always an emergency, and almost always the same shape:

• Someone you love is in trouble. A car crash, an arrest, a hospital, a trip abroad gone wrong.
• It's urgent. Bail, a fine or a lawyer has to be paid right now.
• It's secret. “Please don't tell Mom.” Sometimes a second voice comes on, posing as a lawyer or a police officer.
• The money goes somewhere hard to get back. A wire transfer, gift card numbers, crypto, a payment app, or cash handed to a “courier” at your door.

Every one of those is there to stop you doing the one thing that ends the scam: checking.

What Grandma did right

Here's the good news: Dan's grandma didn't send a cent.

She hung up, and she called Dan, on the number she already had for him. That's exactly what the FTC advises, and it's why the whole thing ended in a confused phone call instead of a lost savings account.

It matters that she used her number for him. Scammers can fake the number that shows on your screen too (it's called spoofing), so a call that says “Dan” isn't proof either. Calling back on the number you saved is.

And if you can't reach them?

Sometimes the person really doesn't answer. They're at work, on a plane, or their phone is dead, and the scammer is counting on that.

So try someone else: a parent, a sibling, a friend who'd know where they are. Do it even if the caller begged you to keep it secret. A real emergency will survive a five-minute check.

And agree on a family code word ahead of time. The FBI's advice is to pick a secret word or phrase with your family, then ask for it whenever a call feels off. A copied voice can sound like your grandson, but it only knows what it has heard, and it hasn't heard your code word.

Back to Grandma

That evening, Dan calls her back.

“Grandma? Our new code word is: fuzzy flamingo.”

Liz, from across the room: “Great. Now pick one you didn't just say in a video.”

She has a point. A code word only works if it's private. Pick something nobody could guess from your social media, say it in person or on a call you made, and don't post it. (So, not “fuzzy flamingo” anymore.)

The takeaway fits on a sticky note by the phone: voices can be faked. Hang up, call back on a number you know, and agree on a code word.

What you can do

• Don't trust the voice, or the name on the screen. Hang up, then call back on the number you already have for them.
• Can't reach them? Call another family member or a friend, even if the caller asked you to keep it secret.
• Agree on a family code word today, in person. Keep it off social media, and ask for it whenever a call feels wrong.
• Never pay by wire, gift card, crypto, payment app or cash courier because of a phone call. Those are the scammer's favorite ways to be paid.
• Got a call like this? In the US, report it at ReportFraud.ftc.gov, and tell your family so they know what to expect.