this post was submitted on 23 Nov 2023
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Commercial Flights Are Experiencing 'Unthinkable' GPS Attacks and Nobody Knows What to Do (www.vice.com)
submitted 11 months ago by L4s to c/technology
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Commercial Flights Are Experiencing 'Unthinkable' GPS Attacks and Nobody Knows What to Do::New "spoofing" attacks resulting in total navigation failure have been occurring above the Middle East for months, which is "highly significant" for airline safety.

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[–] [email protected] 3 points 11 months ago* (last edited 11 months ago) (1 children)

ADIRUs will throw out bad GPS data if it disagrees with multiple IRUs, hence why there's usually 3 on the aircraft. That being said, if the GPS is close enough to the three, then correction will still be applied.

If they're using the older IRUs, the drift is corrected via redundancy and not GPS. Usually pilots will report drift based on their final IRU coordinates compared against GPS. Even then, they should still be checking their course with VOR.

[–] [email protected] 1 points 11 months ago (1 children)

Anyone with the ability to jam GPS can easily spoof VOR signals.

[–] [email protected] 1 points 11 months ago (1 children)

But in this case, they're not. Plus, the crew are going to be the ones determining if their VOR/DME makes sense or not.

[–] [email protected] 1 points 11 months ago* (last edited 11 months ago)

We don't know that they aren't spoofing VOR/DME as well. We might be seeing reports from affected aircraft, rather than specifically targeted aircraft.