Kaspersky Lab researcher Roman Unuchek has examined how a number of fitness wristbands interact with a smartphone and discovered some surprising results. The authentication method implemented in several popular smart wristbands allows a third-party to connect invisibly to the device, execute commands, and in some cases extract data held on the device. The rogue connection is made possible because of the way in which the wristband is paired with a. smartphone. An Android-based device running Android 4.3 or higher, with a special unauthorised app installed can pair with wristbands from certain vendors.”]