Your phone can be snooped on via gyroscope

Mobile & tablets

by CBR Staff Writer| 19 August 2014

Researchers will demonstrate the process used to spy on smartphones using gyroscopes at Usenix Security event on August 22, 2014.

Researchers from Stanford and a defence research group at Rafael will demonstrate a way to spy on smartphones using gyroscopes at Usenix Security event on August 22, 2014.

According to the 'Gyrophone: Recognizing Speech From Gyroscope Signals' study, the gyroscopes integrated into smartphones were sensitive enough to enable some sound waves to be picked up, transforming them into crude microphones.

Researchers noted: "We show that we can use gyroscopes to eavesdrop on speech without using the microphone at all, which can potentially risk private information such as identity, social security and credit card numbers.

"We show that the acoustic signal measured by the gyroscope can reveal private information about the phone's environment such as who is speaking in the room and, to some extent, what is being said.

"We use signal processing and machine learning to analyse speech from very low frequency samples.

With further development on such low-frequency signal processing researchers claim it has to be possible to raise the quality of the information pulled out from the gyroscope."

The researchers added: "We achieve about 50% success rate for speaker identification from a set of 10 speakers.

"We also show that while limiting ourselves to a small vocabulary consisting solely of digit pronunciations ("one","two", "three", ...) and achieve speech recognition success rate of 65% for the speaker dependent case and up to 26% recognition rate for the speaker independent case."

Post a comment

Comments may be moderated for spam, obscenities or defamation.

Join our network

792 people like this.
2210 people follow this.

Mobile & tablets Intelligence

Buy the latest industry research online today!
See more
Privcy Policy

We have updated our privacy policy. In the latest update it explains what cookies are and how we use them on our site. To learn more about cookies and their benefits, please view our privacy policy. Please be aware that parts of this site will not function correctly if you disable cookies. By continuing to use this site, you consent to our use of cookies in accordance with our privacy policy unless you have disabled them.