UAB Research Finds Security Risks with Computer Created Voices

 ========= Old Image Removed =========Array
(
    [_wp_attached_file] => Array
        (
            [0] => 2017/05/e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave.png
        )

    [_wp_attachment_metadata] => Array
        (
            [0] => a:5:{s:5:"width";i:640;s:6:"height";i:342;s:4:"file";s:81:"2017/05/e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave.png";s:5:"sizes";a:10:{s:6:"medium";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-336x180.png";s:5:"width";i:336;s:6:"height";i:180;s:9:"mime-type";s:9:"image/png";}s:9:"thumbnail";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-140x140.png";s:5:"width";i:140;s:6:"height";i:140;s:9:"mime-type";s:9:"image/png";}s:9:"wbhm-icon";a:4:{s:4:"file";s:79:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-80x80.png";s:5:"width";i:80;s:6:"height";i:80;s:9:"mime-type";s:9:"image/png";}s:13:"wbhm-featured";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-600x338.png";s:5:"width";i:600;s:6:"height";i:338;s:9:"mime-type";s:9:"image/png";}s:20:"wbhm-featured-square";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-600x342.png";s:5:"width";i:600;s:6:"height";i:342;s:9:"mime-type";s:9:"image/png";}s:18:"wbhm-featured-home";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-582x311.png";s:5:"width";i:582;s:6:"height";i:311;s:9:"mime-type";s:9:"image/png";}s:22:"wbhm-featured-carousel";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-470x251.png";s:5:"width";i:470;s:6:"height";i:251;s:9:"mime-type";s:9:"image/png";}s:28:"ab-block-post-grid-landscape";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-600x342.png";s:5:"width";i:600;s:6:"height";i:342;s:9:"mime-type";s:9:"image/png";}s:25:"ab-block-post-grid-square";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-600x342.png";s:5:"width";i:600;s:6:"height";i:342;s:9:"mime-type";s:9:"image/png";}s:14:"post-thumbnail";a:4:{s:4:"file";s:81:"e837b80c2af2033ecd0b470de7444e90fe76e6dc1fb0174392f2c6_640_sound-wave-125x125.png";s:5:"width";i:125;s:6:"height";i:125;s:9:"mime-type";s:9:"image/png";}}s:10:"image_meta";a:12:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";s:11:"orientation";s:1:"0";s:8:"keywords";a:0:{}}}
        )

)
1662735785 
1497345881

What if someone could take a recording of your voice and use it to create a digital version? In other words, he or she could use a computer to make it sound like you’re saying anything. A few weeks ago, the Canadian startup Lyrebird released a computer-generated conversation between some familiar voices.

It’s not the most natural-sounding, but you can probably tell the voices mimic Presidents Donald Trump, Barack Obama, and former Secretary of State Hilary Clinton. The technology has applications beyond parlor tricks. It’s also raising security concerns. That’s because we use our voices to identify ourselves.

Digital assistants such as Apple’s Siri or Amazon’s Alexa are designed to recognize a specific voice. Otherwise anyone shouting “Hey, Siri” could unlock any phone. Beyond that, some banks are now using voice recognition software to allow customers to access financial information by phone. Your voice essentially becomes a password.

But perhaps it’s not a very good password if software can now mimic your voice. Think about how many voices could be collected from YouTube videos or surreptitiously recorded with a smart phone.

So a team with UAB’s SPIES research group, which looks at emerging security and privacy issues, tackled a key question: is this type of security vulnerable to impersonation?

The study looked at two things. First, would a computer recognize and thus reject the fake voice? Turns out, according to this study, the synthesized voice fooled the computer more than 80 percent of the time.

“It’s not secure at all,” says Maliheh Shirvanian, who was part of the research team.

The second part of the study tested humans. Could they tell the difference between a real and fake voice? Test subjects listened to clips of Morgan Freeman and one like this.

Or maybe this…

That’s a fake Oprah Winfrey followed by her real voice.

People got it right only about half the time. Better than the computer but still no better than chance.

When this study came out in 2015, it raised a lot of alarms within the tech community. But Dan Miller says that’s overblown. He’s lead analyst with the firm Opus Research and he follows voice technology. Miller explains there are good procedures and technology in place to prevent fraud. He says outside the lab, banks he’s worked with can reduce that false acceptance rate to less than 2 percent.

“There is always a view that you can defeat these things and indeed you can,” says Miller. “But the safeguards against them being defeated are developing as rapidly as the methods to defeat them.”

Miller says every type of password has vulnerabilities. That’s why security experts recommend multi-factor identification where you need more than just one type of password to access something.

UAB’s Maliheh Shirvanian says the study from 2015 tested speech algorithms. They expect to release a new study in the coming months that tests actual apps which use speech recognition. It’ll be a measure of how quickly the technology is advancing, both to fake voices and to fight the fakes.

 

Israel says it carried out a strike on Hamas’ main political office in Qatar

The Israeli military says it has carried out an airstrike on Hamas political headquarters in Qatar. Television footage from Doha showed a huge cloud of gray smoke rising over the area of Doha where the bombing took place.

New books out today: A Dan Brown thriller, John Prine bio, and World Wide Web memoir

New books this week include Secret of Secrets — the sixth installment of The Da Vinci Code saga, plus a tech memoir from Tim Berners-Lee and a career-spanning anthology from Terry McMillan.

‘We just want to get to the truth’: Jabari Peoples’ family still seeking answers

Eighteen-year-old Jabari Peoples was shot and killed by a Homewood police officer earlier this year. His family is still reeling from the loss and maintain their disagreement with police’s account of the incident.

Here’s what happens when private equity buys homes in your neighborhood

What makes rents go down and neighborhood diversity go up? Corporate landlords. But they also make it harder to own for yourself.

Here they are: The best student podcasts in America

For the 2025 NPR Student Podcast Challenge, we've listened to nearly 2,000 entries from around the U.S., and narrowed them down to 11 middle school and 10 high school finalists.

Trump’s Medicaid cuts will hurt children’s hospitals

The GOP said its overhaul of Medicaid was aimed at reducing fraud and getting more adult beneficiaries to work. Among the likely side effects: fewer services and doctors for treating sick children.

More Front Page Coverage