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Voice Phishing Scams Are Getting More Clever (krebsonsecurity.com)

Security researcher Brian Krebs highlights several clever methods scammers are using to obtain your personal information. In one example, someone used a fully-automated voice to try and scam "a cybersecurity professional with more than 30 years of experience" by greeting him with a four-note AT&T jingle, "followed by a recorded voice saying AT&T was calling to prevent his phone service from being suspended for non-payment."

"It then prompted me to enter my security PIN to be connected to a billing department representative," Jon said. "My number was originally an AT&T number (it reports as Cingular Wireless) but I have been on T-Mobile for several years, so clearly a scam if I had any doubt. However, I suspect that the average Joe would fall for it." Krebs reports of another, more sophisticated scam attempted on Matt Haughey, the creator of the community Weblog MetaFilter and a writer at Slack: Haughey banks at a small Portland credit union, and last week he got a call on his mobile phone from an 800-number that matched the number his credit union uses. Actually, he got three calls from the same number in rapid succession. He ignored the first two, letting them both go to voicemail. But he picked up on the third call, thinking it must be something urgent and important. After all, his credit union had rarely ever called him. Haughey said he was greeted by a female voice who explained that the credit union had blocked two phony-looking charges in Ohio made to his debit/ATM card. She proceeded to then read him the last four digits of the card that was currently in his wallet. It checked out. Haughey told the lady that he would need a replacement card immediately because he was about to travel out of state to California. Without missing a beat, the caller said he could keep his card and that the credit union would simply block any future charges that weren't made in either Oregon or California.

This struck Haughey as a bit off. Why would the bank say they were freezing his card but then say they could keep it open for his upcoming trip? [...] The caller then read his entire home address to double check it was the correct destination to send a new card at the conclusion of his trip. Then the caller said she needed to verify his mother's maiden name. The voice in his head spoke out in protest again, but then banks had asked for this in the past. He provided it. Next she asked him to verify the three digit security code printed on the back of his card. Once more, the voice of caution in his brain was silenced: He'd given this code out previously in the few times he'd used his card to pay for something over the phone. Then she asked him for his current card PIN, just so she could apply that same PIN to the new card being mailed out, she assured him. Ding, ding, ding went the alarm bells in his head. Haughey hesitated, then asked the lady to repeat the question. When she did, he gave her the PIN, and she assured him she'd make sure his existing PIN also served as the PIN for his new card. Haughey said after hanging up he felt fairly certain the entire transaction was legitimate, although the part about her requesting the PIN kept nagging at him.
Long story short, two fradulent charges were made on his account totaling $3,400. "People I've talked to about this say there's no way they'd fall for that, but when someone from a trustworthy number calls, says they're from your small town bank, and sounds incredibly professional, you'd fall for it, too," Haughey said.

4 of 201 comments (clear)

  1. I can vouch for this by Applehu+Akbar · · Score: 5, Interesting

    The creepiest voice phish I ever got was the call from my little brother, exactly his voice and intonation pattern, telling us he was in jail in Mexico and needed money. The only way I knew it was a scam, besides the Mexican authorities suddenly accepting payment in Bitcoin, was knowing that he had been sick for years and unable to travel.

    1. Re:I can vouch for this by toejam13 · · Score: 4, Interesting

      With voice-mimicking software getting better and better, I imagine that these sorts of spear-fishing scams will become more prevalent, especially against the elderly.

      Scour social media for videos of identifiable individuals, find all familial elder links, train the software, and then make a call in that individual's voice using their number in the caller ID field about a phony issue that asks them to send money.

    2. Re:I can vouch for this by Applehu+Akbar · · Score: 4, Interesting

      I'm guessing that they phone-scraped voice from his job, which was buyer for a hinge manufacturing company in LA. He had to spend a lot of time on the phone.

  2. Re:Whoa. by ShanghaiBill · · Score: 5, Interesting

    They can spoof the legitimate bank customer service number.

    But only because the telecom companies let them, and the government has done nothing to ban the practice.

    Spoofing should be illegal unless the company doing the spoofing owns both numbers.

    That this is mostly an American+Canadian problem. The practice is illegal in most other countries.