Scam Alert: Google Voice Verification Code Con Targets Online Sellers, Buyers

Never share a Google Voice verification code — or any other two-factor authentication message — with anyone.
Bev O'Shea
By Bev O'Shea 
Updated
Edited by Kathy Hinson

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Journalist Kelly Rissman of New York City had advertised some furniture online with not so much as a nibble when “Jaree” sent a message via the OfferUp resale app asking if it was still available.

Jaree asked for Rissman’s phone number, then texted to say she would send a code that Rissman could text back to verify she was a real person.

Eager to get out from under storage payments for furniture she no longer needed, Rissman agreed. A six-digit code from Google arrived quickly, along with something written in Filipino. Had she translated it, Rissman would have discovered it said: “------ is your Google Voice verification code. Don’t share it with anyone else.”

Rissman texted the digits back.

How the scam works

Jaree had no interest in furniture. Her aim was to trick Rissman into divulging her phone number and then a Google Voice verification code.

Here’s how a Google Voice verification code scam typically works:

  • A criminal downloads the Google Voice app and links it to a Gmail account.

  • Then they find a potential victim, for instance on a sellers marketplace. They say they’ve been burned in the past by bots and ask the seller to accept and text back a code to prove they’re a real person.

  • When the victim texts the code back, the scammer can link the Google Voice number to the victim’s authenticated phone.

  • The scammer uses the Google Voice number in fraudulent ads on marketplace websites or other criminal activity.

In other words, first the scammer is a fake buyer, then once they trick victims into authenticating Google Voice accounts, the scammer becomes a fake seller — potentially ensnaring a second generation of victims who pay for goods they never receive.

Rissman became suspicious and ended the call when Jaree said there had been a problem and asked if Rissman had another number to try.

Although she writes about scams, Rissman says she was fooled because this didn’t have the typical hallmarks: She hadn’t been asked for personal data or account numbers, and she hadn’t provided a way to steal her identity or her money.

Why Google Voice?

Google Voice lets users merge multiple phone numbers into one. There are plenty of legitimate uses for a Google Voice number. People can give it to business and personal contacts instead of having to juggle multiple phone numbers. Individuals can keep their cell phone numbers private, and businesses can find an available number with the last four digits that they want.

But scammers want a steady supply of new Google Voice numbers to use in criminal activity. Victim complaints and investigations will initially point to the original victim’s authenticated phone number. It takes further investigation to find the Gmail account established by the criminal.

Once Rissman understood the scam, she unlinked her phone number. Google offers a help page that walks users through claiming the number in use with another account.

The scam’s not new, but it’s hot

The Google Voice authentication scam isn’t new, says Eva Velasquez, president and CEO of the Identity Theft Resource Center.

The Google Voice scam began to gather steam in the summer, Velasquez says, and it has not slowed down. It accounted for 70 percent of November's scam complaints to the ITRC. The center has begun seeing Google Voice numbers being used on online marketplaces, particularly Facebook Marketplace, Alex Achten of the ITRC said in an email.

Commerce sites like eBay, Facebook Marketplace and Craigslist aren’t the only ones where criminals fish for verification codes. It’s been done on dating sites and even in response to notices about lost pets. The common thread: Someone wants you to prove you are a real person by receiving and sending back a code.

The volume of complaints indicates criminals have a new cache of Google Voice numbers and it’s likely some will be used in online ads in coming weeks. Extra caution is warranted.

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How to keep safe

If you’re a seller, check whether the platform you’re on has a feature to verify its users, advises Amy Nofziger, director of victim support for the AARP Fraud Watch Network. If a would-be customer asks to verify your identity, insist they use that feature. If the seller insists on moving off the selling platform to texting or calls, that’s a danger sign.

Do not accept and text back a code. “It says right on it, do not share this code with anyone,” Velasquez says. “We really want to hit that home for people. These are codes that you get to verify yourself. These are a second layer of authentication, and they're only for you. … And if someone asks you to share it with them, that should be a big red flag.”

Buyers should also proceed with caution, Velasquez says. A listing could be using a purloined Google Voice number.

  • Verify as much information as possible about the seller. If the selling platform has a verification feature, use it.

  • Don’t deal with anyone who wants payment in gift cards — that’s a sure sign of a scam.

  • Use a credit card if possible; they have protections that peer-to-peer payments and debit cards do not.

  • Meet in a safe place to exchange payment and merchandise.

People who lose money to fraudsters using Google Voice numbers are unlikely to know that their theft was put in motion when someone was tricked into revealing a verification code. “I really think that there are more victims (of the scam) than are even aware they are victims,” Rissman says.

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