What Exactly is Bluetooth?
Bluetooth, named after a 10th century Danish king, Harold Bluetooth, is a communication standard for exchanging data between mobile and fixed devices. Bluetooth uses the industrial, science and medicine part of the radio spectrum, namely frequencies from 2.402 GHz to 2.480 GHz.
Bluetooth Legacy Pairing, meaning devices using Bluetooth 2.0 or older, uses a PIN as a method for users to verify the two device’s secure connection. This method proved to be exploitable, mostly due to the negligence of the users.
Bluetooth devices 2.1 and above use Secure Simple Pairing, a variant of public key cryptography, and has 4 types of handshaking. Devices need to electronically handshake and pair in order for data to be transmitted between them.
The Tragic Stories Behind The Shortest Reigns In Royal History
By Debra Kelly/Feb. 9, 2021 3:36 pm EDT/Updated: March 4, 2021 12:38 am EDT
Many scientists argue that it s a sense of self that sets humans apart from animals, and according to Aeon, that s pretty much all we know about our own consciousness. It s gone from the stuff of philosophy to science, and it s kind of a double-edged sword. Sure, being self-aware is pretty cool, but it s also what makes us very aware of all our mistakes, errors, and oopsies.
It s bad enough when we screw up on what s really a small scale: In a few months, no one s going to remember that time the kitchen almost got set on fire, or the coworker who got a glimpse of that photo.