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paulirish · 13 days ago
This was not spoofed at the ADS-B layer. It was just spoofed to adsb exchange. (While typically a feeder contributes to multiple sites, this one didn't.) eg:

- https://globe.adsb.fi/?icao=adfdf9&lat=26.678&lon=-80.030&zo...

- https://adsb.lol/?icao=adfdf9&lat=26.678&lon=-80.030&zoom=14...

Relevant discussion on r/adsb: https://www.reddit.com/r/ADSB/comments/1qp3q9n/interesting/ where they note it's also absent on FR24, airplanes.live, and theairtraffic.com.

The adsb-x feeder map: https://map.adsbexchange.com/mlat-map/ They probably won't have a hard time identifying who contributed that data.

ryandrake · 13 days ago
Yea, this is more like vandalizing Wikipedia than spoofing or interfering with safety-critical systems. It's juvenile, but probably not crashing any planes. It'll get reverted, and then presumably the adsb exchange website will tighten up their security.
PunchyHamster · 13 days ago
There is no security within ADS-B. All you need is directional antenna pointing at receiver (if you just want to fuck with website, not cause mass panic in the nearest airport tower), there is no encryption or other form of authentication in the messages.
antonvs · 13 days ago
> It's juvenile

Juvenile times call for juvenile measures. In case you haven’t noticed, the US is being run by a bunch of arrested development high school bullies. Juvenile is one of the only languages they understand.

consumer451 · 13 days ago
I had also posted this story earlier, then deleted it once I learned that. However, I did find this interesting doc about real ADS-B spoofing, which does not appear to be very easy:

https://www.icao.int/sites/default/files/APAC/Meetings/2025/...

PunchyHamster · 13 days ago
That just says "you need to go outside, and own an SDR". It's very easy, there is no encryption nor authentication in the system
jjwiseman · 13 days ago
As other commenters noted, this is almost certainly not RF spoofing, just sending bad data to an aggregator (ADS-B Exchange) over the internet.

This instance of spoofing is notable for being the first that I know of that wasn't primitive vector art or text, but a raster image!

In that area of Florida multiple receivers would have picked up actual ADS-B broadcasts. ADS-B aggregators do have various anti-spoofing measures, but they're not impossible to circumvent.

The only case of actual RF spoofing of aircraft transponder signals that I know of was actually done by the U.S. Secret Service, which interfered with passenger jet collision alert systems (TCAS) by apparently broadcasting bogus signals near Ronald Reagan National Airport (KDCA): https://nymag.com/intelligencer/article/aviation-flights-whi...

jjwiseman · 13 days ago
Just because I don't often get a chance to talk about this, I'll mention that there was a malfunction/accident/bug that caused what you might call spoofed signals to go out around Long Island and New York. Really interesting case where it seems that an FAA system wasn't handling magnetic declination correctly, which led to it generating false TIS-B targets that were rotated 13 degrees from real aircraft positions, from the radar antenna point of view: https://x.com/lemonodor/status/1508505542423064578

(TIS-B is a system that broadcasts ADS-B-like signals for aircraft that are being tracked by radar but either don't have ADS-B Out or otherwise might not be picked up by other aircraft with ADS-B In, e.g. maybe they're at a low altitude.)

There have been a couple other incidents with the TIS-B system. E.g. this apparent test near Dallas in 2022 that generated dozens of false targets in an interesting pattern: https://x.com/lemonodor/status/1481712428932997122 There was a similar incident around LAX several months later.

andyfowler · 13 days ago
whoa, i saw your initial tweet about this, but never saw your follow up that confirmed the magnetic declination association. the convergence back to the ground radar is brilliant. nice find.
jacquesm · 13 days ago
Wow, that would appear to have some potential for bad stuff to happen.
Scoundreller · 13 days ago
Notably, the history of this aircraft shows MLAT as the source for all tracking. This spoof is the first ads-b “track” for this plane.

But there’s so much wrong with the data: 50k ft at 80knots (ground speed!) in a 747.

jychang · 13 days ago
Dang, dude invented a 747 that's incapable of stalling.
x3n0ph3n3 · 13 days ago
Must be a strong headwind!
jjwiseman · 13 days ago
(Of course if you were spoofing ADS-B RF signals you wouldn't necessarily need to be anywhere near the spoofed locations. Just like with GPS spoofing.)
Nextgrid · 13 days ago
Surely the receiver would run plausibility checks on the received messages and reject spoofed locations that are physically impossible to receive by said receiver?
krferriter · 13 days ago
I agree with this. Hopefully they're able to track down who did this. To upload to ADS-B Exchange you need an account. But it's not that difficult to get one. I'm not sure what kind of information they may be able to get on it. As you say the person who uploaded this may not be anywhere near there. The aggregators probably should have heuristics like if only one feeder in an area with a decent density of feeder coverage uploads an anomalous track, it should get flagged.
teiferer · 13 days ago
> Hopefully they're able to track down who did this.

Why? Was anybody harmed?

Hopefully they don't find out who did this. There was never any danger, and without this kind of joke, the world would be less fun.

(Obviously it should be harder to fool critical systems, so this served also as a warning, but if you want to attack such a system, a real bad guy would do this in more subtle ways.)

foota · 13 days ago
The FCC and the FAA are two federal agencies that really don't want to mess with, so I hope for their sake they didn't actually spoof it. (.... I wish there were an FBB as well)
varenc · 13 days ago
Seems like it wasn't actually spoofed radio signals, but spoofed data collection uploaded to adsbexchange. Still seems unlikely to make the FAA happy, but not as bad. I assume air traffic controllers aren't relying on adsbexchange?
jjwiseman · 13 days ago
Maybe not "rely" on, but some definitely use public ADS-B aggregator sites.
cm2187 · 13 days ago
plus they did that right next to an airport
cyanydeez · 13 days ago
Depends, how much did DOGE fuck with their leadership and management.

We now have to both identify obama judges, trump judges and trump bootlickers.

jacquesm · 13 days ago
nshireman · 13 days ago
Source:Other

There it is. Someone running a fake feeder uploaded fake data. No spoofed signals were actually sent over the radio.

jacquesm · 13 days ago
I always thought that coverage of those receivers was so dense by now that you'd have multiple reports of each aircraft but apparently that's not the case.

Dead Comment

decimalenough · 13 days ago
belter · 13 days ago
If you get the DF17 frames and extract the airborne position messages Type Codes 9–18.

Then CPR decode them into latitude/longitude....plus plot enough spoofed positions so the point cloud forms a QR code like raster on the map, then scan the rendered pattern...you get a URL to the unredacted Epstein files.

jacquesm · 13 days ago
Hehe, you had me all the way to the punchline, that was funny.
fortran77 · 13 days ago
Most likely they spoofed the reporting API to "FlightAware" or other ADSB crowd-data-sourced sites and didn't spoof "ADSB Signals"

Deleted Comment

colechristensen · 13 days ago
Actually spoofing ADSB radio signals could very well land you in prison with a $100,000 fine. The FCC is very eager to find and fine you for these kinds of stunts.

Spamming flightaware is much less severe, but still... it's not cute to mess with life-safety critical infrastructure.

fc417fc802 · 13 days ago
FlightAware isn't safety critical. If it was then being able to spoof it in this manner would be negligence on the part of the operator.

Deleted Comment

KnuthIsGod · 13 days ago
How long before domestic terrorism charges are laid ?

Everthing seems to be domestic terrorism in the US these days.

mindslight · 13 days ago
Domestic terrorism is now an official policy goal of the "US" government, so yes, there is a lot of it.
abustamam · 13 days ago
Easy to justify the murder of your political opponents by calling them domestic terrorists.

What's almost more frightening is how many people actually buy it.

jjwiseman · 13 days ago
It's happening again. Spoofing is in progress, rendering another image. ADS-B Exchange has blocked access to the ICAOs/hexes in question--if you try to look at their history you get redirected to the base map.

https://x.com/TheIntelFrog/status/2016841289556168990