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VTV.vn - Ít nhất 5 người thiệt mạng trong vụ rơi khinh khí cầu ở thành phố Albuquerque, thuộc bang New Mexico sáng 26/6 (theo giờ Mỹ).
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, ...