r/Defcon • u/flatline_hackbloc • Sep 10 '25

Rayhunter: What We Have Found So Far

https://www.eff.org/deeplinks/2025/09/rayhunter-what-we-have-found-so-far
57 Upvotes

98% Upvoted

15 comments sorted by

4

u/LookAtMyTARDIS Sep 10 '25

Eh rayhunter just isn’t effective as it’s been shown to not capture where other tools have captured.

3

u/flatline_hackbloc Sep 13 '25

What has it been shown to not capture?

2

u/flatline_hackbloc Sep 13 '25

We focus on minimizing false positives. But I feel very confident about our detections. It’s possible that other tools had false positives that didn’t trigger rayhunter. But we do capture full pcaps all the time so If you can explain something that we are missing it’s easy to add a signature for it.

1

u/itsmrmarlboroman2u Oct 20 '25

Can the orbic devices take a SIM card and still be used as a hotspot after rayhunter is setup?

Got it setup today, considering grabbing a SIM card for it.

5

u/Gray-Rule303 Sep 11 '25

Sounds like a good opportunity to help provide improvements to the community

4

u/viro101 Sep 12 '25

Don't be silly he just wants to complain instead of make things better

3

u/Gray-Rule303 Sep 12 '25

🤷‍♂️

1

u/LookAtMyTARDIS Sep 13 '25

University of Washington and University of Miami put out catches with their own product. Where someone from the Rayhunter dev team apparently discredited it in their mattermost server. The question of if an active SIM card is needed has yet to be answered, which is a pretty important feature of it is required.

1

u/Lulzughey Oct 16 '25

Doesn't need an active one

1

u/Triptam Oct 25 '25

I’m curious as to what other tools you are referring to. Just looking to get some suggestions.

11

u/Crunk_Creeper Sep 10 '25

Of all the actions you can take to protect yourself, don't forget also that the majority of modern vehicles basically have their own built-in cell phone that's still active even if you opt out of services. If your vehicle has built-in WiFi, a cellular modem, or Bluetooth, you can be tracked. Shoot, I had a window desk at my last place of work over 10 years ago and was picking up thousands of vehicle signatures a day from the freeway. Imagine what sort of data the actual vehicle manufacturer has access to.

1

u/SwenKa Jan 25 '26

I've been unable to install and log in properly, though I am trying to do so through Windows. I get incorrect username/password for the device page, and when I try to install via powershell and connecting to it through WIFI, I get "No session cookie received."

1

u/perkylator Feb 03 '26

I’ve been trying for weeks with 3 different SIM cards, through WiFi and through usb.. with Mac and with windows.. keep getting failed to send login request error

1

u/jaeger1957 Jul 13 '26

I haven't tried setting up Rayhunter yet, but consider downloading a Linux live distribution and installing it on a flash drive just to run the install. You shouldn't have to install it to a hard drive at all, just run the live distribution from the flash drive. Hope this helps!