(sp)iPhone: Decoding Vibrations From Nearby Keyboards Using Mobile Phone Accelerometers

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Provided by: Association for Computing Machinery
Topic: Security
Format: PDF
Mobile phones are increasingly equipped with a range of highly responsive sensors. From cameras and GPS receivers to three-axis accelerometers, applications running on these devices are able to experience rich interactions with their environment. Unfortunately, some applications may be able to use such sensors to monitor their surroundings in unintended ways. In this paper, the authors demonstrate that an application with access to accelerometer readings on a modern mobile phone can use such information to recover text entered on a nearby keyboard.
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