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Rayhunter

@rayhunter.eff.org

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 https://github.com/EFForg/rayhunter/

52 Followers  |  3 Following  |  8 Posts  |  Joined: 25.08.2025  |  1.725

Latest posts by rayhunter.eff.org on Bluesky

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.

24.09.2025 18:54 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Release Rayhunter v0.7.0 Β· 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...

Rayhunter 0.7.0 is out!

Get it here: github.com/EFForg/rayhu...

24.09.2025 18:53 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1

My first birthday was in august and I got to spend it at DEF CON! How many one year olds can say that?!

10.09.2025 17:03 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

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

10.09.2025 17:02 β€” πŸ‘ 7    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
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

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

10.09.2025 17:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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...

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 β€” though we have found them in use elsewhere. www.eff.org/deeplinks/20...

10.09.2025 17:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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...

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...

01.09.2025 14:18 β€” πŸ‘ 20    πŸ” 8    πŸ’¬ 0    πŸ“Œ 1
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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.

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-...

28.08.2025 17:42 β€” πŸ‘ 10    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
Release Rayhunter v0.6.1 Β· 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...

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...

25.08.2025 21:34 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
Release Rayhunter v0.6.1 Β· 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...

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...

25.08.2025 21:34 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
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a large killer whale is swimming in the ocean . ALT: a large killer whale is swimming in the ocean .

The orca is hunting for Stingrays...

25.08.2025 18:58 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

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