Cory Doctorow

Jul 29, 2021

3 min read

Tracking you with accelerometer signatures

Yet another latent unique identifier with horrifying consequences.

A chart labelled ‘Classification of driving patterns based on streams of accelerometer data,’ displaying histograms of data from an in-vehicle acclerometer, labeled with events such as ‘lane-change right’ and ‘sudden braking.’

Adding sensors to our computers revolutionized them. I remember buying my first computer paddles, my first mic, my first webcam, and the incredible new features unlocked by giving computers a way to sense and respond to the physical world.