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Rayhunter

@rayhunter.eff.org
141 followers 4 following 14 posts

Rayhunter is a project for detecting IMSI catchers, also known as cell-site simulators or stingrays. It was first designed to run on a cheap mobile hotspot. I'm the project mascot, Big Yachty, I live at github.com/EFForg/rayhunter

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Rayhunter @rayhunter.eff.org · 12/05/2026
Ooops! Quick hotfix for a breaking bug in 0.11.0, download this one instead. github.com/EFForg/rayhu...
github.com
Release Rayhunter v0.11.1 · EFForg/rayhunter
Major changes Hotfix a regression that broke the web interface on all browsers. Full changelog Fix CI: installer-gui needs wpa-supplicant by @untitaker in #1027 Revert "Compress the web frontend u...
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Rayhunter @rayhunter.eff.org · 12/05/2026
Rayhunter 0.11.0 is now out! Wifi client mode - you can now connect orbic based devices as a wifi client in your local network, allowing you to send notifications etc. w/o a data plan. WebDAV uploads - you can now automatically upload rayhunter recordings over webdav github.com/EFForg/rayhu...
github.com
Release Rayhunter v0.11.0 · EFForg/rayhunter
Major Changes Wifi client mode - you can now connect orbic and moxee devices as a wifi client in your local network, allowing you to receive push notifications and other things without having a da...
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Rayhunter @rayhunter.eff.org · 05/02/2026
Rayhunter 0.10 is out! github.com/EFForg/rayhu... Improved the Priority 2G Downgrade heuristic to fix false positives in Europe new High Visibility display mode, draws red/green all over the screen instead of just a line Rayhunter will now warn you if you have no SIM card inserted and more!
github.com
Release Rayhunter v0.10.0 · EFForg/rayhunter
Major changes Improved the Priority 2G Downgrade heuristic to fix false positives in Europe new High Visibility display mode, draws red/green all over the screen instead of just a line Fix a bug w...
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Rayhunter @rayhunter.eff.org · 06/01/2026
We are honored to be included in this list of DIY tech for Anarchists by @bennjordan.bsky.social Lots of other cool tools in there too! www.youtube.com/watch?v=W_F4...
youtube.com
Gadgets For People Who Don't Trust The Government
YouTube video by Benn Jordan
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Rayhunter @rayhunter.eff.org · 06/01/2026
# Rayhunter 0.9.0 ## Major changes * bug fixes and documentation updates Get it while its hot: github.com/EFForg/rayhu...
github.com
Release Rayhunter v0.9.0 · EFForg/rayhunter
Major Changes lots of bug fixes and documentation updates What's Changed possible gui installer framework by @bmw in #687 One pass of cargo-audit by @untitaker in #684 Removed reference to delet...
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Rayhunter @rayhunter.eff.org · 05/11/2025
Rayhunter v0.8.0 is out! github.com/EFForg/rayhu... Major Changes * network based installer is now the default installer for orbic * Major bugfixes for TP-Link installer * other minor bugfixes and improvements
github.com
Release Rayhunter v0.8.0 · EFForg/rayhunter
Major Changes network based installer is now the default installer for orbic Major bugfixes for TP-Link installer other minor bugfixes and improvements What's Changed Update orbic uninstall file...
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Rayhunter @rayhunter.eff.org · 24/09/2025
Still very unclear what all that was but it sure looks like an SMS spam farm to me. Doesn't look at all like fake base station equipment.
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Rayhunter @rayhunter.eff.org · 24/09/2025
Rayhunter 0.7.0 is out! Get it here: github.com/EFForg/rayhu...
github.com
Release Rayhunter v0.7.0 · EFForg/rayhunter
Major Changes notifications for low battery level over ntfy (for users with an active sim plan) several bugfixes filter to only see runs with warnings view logs in web UI What's Changed Fix link...
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Rayhunter @rayhunter.eff.org · 10/09/2025
My first birthday was in august and I got to spend it at DEF CON! How many one year olds can say that?!
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Rayhunter @rayhunter.eff.org · 10/09/2025
Rayhunter can help you detect these fake base stations used by ICE. It runs on a $20 mobile hotspot. Check it out at github.com/efforg/rayhunter
github.com
GitHub - EFForg/rayhunter: Rust tool to detect cell site simulators on an orbic mobile hotspot
Rust tool to detect cell site simulators on an orbic mobile hotspot - GitHub - EFForg/rayhunter: Rust tool to detect cell site simulators on an orbic mobile hotspot
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Rayhunter @rayhunter.eff.org · 10/09/2025
The rayhunter tool can help you detect these fake base stations used by ICE. It runs on a $20 mobile hotspot. Check it out at github.com/efforg/rayhunter
github.com
GitHub - EFForg/rayhunter: Rust tool to detect cell site simulators on an orbic mobile hotspot
Rust tool to detect cell site simulators on an orbic mobile hotspot - GitHub - EFForg/rayhunter: Rust tool to detect cell site simulators on an orbic mobile hotspot
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Rayhunter @rayhunter.eff.org · 10/09/2025
Understanding if IMSI catchers are being used to spy on protests is one of the main goals of the Rayhunter project. So far we have not found any evidence of cell-site simulators being used to spy on protests in the US — though we have found them in use elsewhere. www.eff.org/deeplinks/20...
eff.org
Rayhunter: What We Have Found So Far
A little over a year ago we released Rayhunter, our open source tool designed to detect cell-site simulators. We’ve been blown away by the level of community engagement on this project. It has been in...
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Reposted by Rayhunter
Firewalls Don't Stop Dragons @firewalldragons.bsky.social · 01/09/2025
Meet Rayhunter - the @eff.org 's tool to gather much-needed data on the use of cell site simulators. It's cheap & easy to set up. Today we'll talk with @cooperq.com, OopsBagel, and Gibson about how CSS's can track you & what we can do about it. podcast.firewallsdontstopdragons.com/2025/09/01/m...
podcast.firewallsdontstopdragons.com
Meet Rayhunter - Firewalls Don't Stop Dragons Podcast
We take our cell phones with us everywhere – which makes them the perfect tracking device. Just walking around with your device will give...
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Reposted by Rayhunter
Exploit Code Not People @cooperq.com · 28/08/2025
Does 5G protect against IMSI Catchers? Not really. You can still easily jam 5G or downgrade a connection to 4G or lower as researchers demonstrated with the sni5gect attack. thehackernews.com/2025/08/new-...
thehackernews.com
New Sni5Gect Attack Crashes Phones and Downgrades 5G to 4G without Rogue Base Station
Sni5Gect attack downgrades 5G to 4G via unencrypted messages, with 90% injection success rate.
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Reposted by Rayhunter
Rayhunter @rayhunter.eff.org · 25/08/2025
Rayhunter v0.6.1 is out! ## Major Changes * Bugfix release, fixes a false positive in the IMSI sent heuristic. * Adds the ability to view errors in the web UI. * documentation updates. Download it at github.com/EFForg/rayhu...
github.com
Release Rayhunter v0.6.1 · EFForg/rayhunter
Major Changes Bugfix release, fixes a false positive in the IMSI sent heuristic. Adds the ability to view errors in the web UI. documentation updates. What's Changed Document reanalyzing feature...
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Rayhunter @rayhunter.eff.org · 25/08/2025
Rayhunter v0.6.1 is out! ## Major Changes * Bugfix release, fixes a false positive in the IMSI sent heuristic. * Adds the ability to view errors in the web UI. * documentation updates. Download it at github.com/EFForg/rayhu...
github.com
Release Rayhunter v0.6.1 · EFForg/rayhunter
Major Changes Bugfix release, fixes a false positive in the IMSI sent heuristic. Adds the ability to view errors in the web UI. documentation updates. What's Changed Document reanalyzing feature...
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Rayhunter @rayhunter.eff.org · 25/08/2025
The orca is hunting for Stingrays...
media.tenor.com
a large killer whale is swimming in the ocean .
ALT: a large killer whale is swimming in the ocean .
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