A vulnerability in the avionics systems on some airliners could allow someone with access to the aircraft to manipulate the flight data that is provided to pilots, the US Department of Homeland Security (DHS) has warned. In an informational alert warning, DHS said the vulnerability is in the controller area network (CAN) data buses used on some aircraft. Introduced in automobiles in the 1980s, the CAN bus is a serial communications protocol that allows various avionics units to communicate ...

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