The Iridium Constellation is a low-earth orbiting fleet of satellites providing global voice and data services to the entire surface of Earth. Designed and built by Motorola in the 90's, it's most notable use is for providing satellite telephone coverage.
From Iridium Communications Inc. internal documents:
“The complexity of the Iridium air interface makes the challenge of developing an Iridium L-Band monitoring device very difficult and probably beyond the reach of all but the most determined adversaries.”
Security through obscurity is never a good philosophy.
Gr-Iridium and Iridium-Toolkit are a pair of software tools for capturing iridium data and decoding it. Gr-Iridium is the detector and demodulator portion which outputs data into an 'output.bits' file. Iridium-Toolkit will sort the data into an 'output.parsed' file so that the decoding tools can extract usable information.
The software defined radio used for capturing with gr-iridium is a BladeRF 2.0 Micro xA4 and the operating system is DragonOS running on an i7 8th gen laptop, bare metal via bootable USB. And for showcasing iridium-toolkit decoding features, I am using a pretty Ubuntu 20.04 virtual machine.
Is it ethical to 'hack' iridium satellites? Definitely not, but some of the blame has to lie with Iridium for not securing their infrastructure and network with encryption. I made this video to spread awareness that your communications are open to eavesdropping if you use this system.
Now for the disclaimers...
THIS VIDEO WAS MADE FOR EDUCATIONAL AND EXPERIMENTATION PURPOSES ONLY. ALSO FOR SPREADING AWARENESS OF THE POTENTIAL PRIVACY AND SECURITY RISKS OF USING IRIDIUM.
ATTEMPTING TO EAVESDROP ON PRIVATE SATELLITE COMMUNICATIONS IS ILLEGAL AND PUNISHABLE BY HEFTY FINES AND IMPRISONMENT. YOU HAVE BEEN WARNED!
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