The brains behind the VibraPhone research are Associate professor Romit Roy Choudhury and Ph.D. candidate Nirupam Roy.
They are planning to present their paper at MobiSys in Singapore later this month.
The VibraPhone is based on the idea that any vibration motor is technically a speaker.
By moving a coil, vibration motors transform electrical current sent into sound waves.
The coil in this case produces vibrations and low buzzing sounds in the phone.
While four in five persons were able to understand spoken words, the results were not the best.
Below is a video explaining the attack.
source: www.techworm.net
