AV-Test.org Finds Popular Fitness Trackers Lack Security

AV-Test.org evaluated nine popular fitness bands and found common IoT security lapses—particularly lack of authentication and encryption—that expose fitness data to unauthorized access and potential manipulation; Jawbone UP24, Polar Loop and Sony Smartband Talk scored best while devices such as the Fitbit Charge and Acer Liquid Leap demonstrated weak protections, with implications for user privacy and possible future misuse in healthcare contexts.