Hands-on: Blue Hydra can expose the all-too-unhidden world of Bluetooth
Despite their "Low Energy" moniker, BTLE devices are
constantly polling the world even while in "sleep" mode. And
while some Bluetooth devices use randomized media access
control (MAC) addresses, they advertise other data that is
unique to each device, including a universally unique
identifier (UUID). As a result, if you can tie a specific UUID
to a device by other means, you can track the device and its
owner. By using the Received Signal Strength Indication
(RSSI), you can get a sense of how far away they are. That
information can be used, for good or ill, to generate movement
data about the people who carry those devices--and to watch
for devices that appear when they shouldn't. "I have an alert
set up for when my mother-in-law's car pulls into range,"
Pwnie's Rick Farina told Ars, as he gave us a walk-through of
the tool. "It gives me about a 30-second warning."
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Care About Science and Tech? Our Job One: STOP TRUMP:
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Lauren Weinstein (lau...@vortex.com): https://www.vortex.com/lauren
Lauren's Blog: https://lauren.vortex.com
Founder: Network Neutrality Squad: https://www.nnsquad.org
PRIVACY Forum: https://www.vortex.com/privacy-info
Co-Founder: People For Internet Responsibility: https://www.pfir.org/pfir-info
Member: ACM Committee on Computers and Public Policy
Tel: +1 (818) 225-2800
I have consulted to Google, but I am not currently
doing so -- my opinions expressed here are mine alone.
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The correct term is "Internet" NOT "internet" -- please don't
fall into the trap of using the latter. It's just plain wrong!
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