As a proof of concept, we examine how smartwatches can lead to realistic
attacks on an academic testing environment. Using the Pebble smartwatch
platform, we demonstrate a prototype cloud-backed application called ConTest
that would enable dishonest students to covertly collaborate on multiple-choice
exams. We also discuss defensive countermeasures for this class of attacks and
use the perspective of this case study to draw broader security lessons about the
future of wearable computing technologies.