Activate This ‘Bracelet of Silence,’ and Alexa Can’t Eavesdrop

Activate This ‘Bracelet of Silence,’ and Alexa Can’t Eavesdrop


Publication Title
The New York Times
Publication/Creation Date
February 14 2020
Creators/Contributors
Kashmir Hill (creator)
Ben Zhao (contributor)
Haitao (Heather) Zheng (contributor)
University Of Chicago (contributor)
Pedro Lopes (contributor)
David Choffnes (contributor)
Daniel Dubois (contributor)
Northeastern University (contributor)
Rick Osterloh (contributor)
Adam Harvey (contributor)
Scott Urban (contributor)
Persuasive Intent
Information
Description
The bracelet is like an anti-smartwatch, both in its cyberpunk aesthetic and in its purpose of defeating technology. A large, somewhat ungainly white cuff with spiky transducers, the bracelet has 24 speakers that emit ultrasonic signals when the wearer turns it on. The sound is imperceptible to most ears, with the possible exception of young people and dogs, but nearby microphones will detect the high-frequency sound instead of other noises.
HCI Platform
Wearables
Relation to Body
On
Related Body Part
Wrist
Source
https://www.nytimes.com/2020/02/14/technology/alexa-jamming-bracelet-privacy-armor.html