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Shannon's Blog
Shannon's Blog
Shannon's blog
YouTube
YouTube
My YouTube channel

Space Security

Satellite and space-system hacking
Aerospace Village
Aerospace Village
DEF CON's aerospace/space security community, home of Hack-A-Sat
Hack-A-Sat
Hack-A-Sat
The satellite CTF that hacks real hardware in orbit; past challenges and writeups
SPARTA (Aerospace Corp)
SPARTA (Aerospace Corp)
ATT&CK-style attack framework for space systems
CYSAT
CYSAT
European conference on satellite and space cybersecurity

RF / SDR & Hardware

Radio, software-defined radio, and hardware hacking
RTL-SDR Blog
RTL-SDR Blog
The most consistent source of hands-on SDR projects and RF attacks
Great Scott Gadgets
Great Scott Gadgets
Makers of HackRF; GNU Radio and replay-attack tutorials
Hackaday
Hackaday
Deep well of RF, SDR, satellite, and hardware projects

Infosec / CTF

General security research and CTF
CTFtime
CTFtime
CTF event calendar and writeup aggregator
Trail of Bits Blog
Trail of Bits Blog
In-depth reversing, firmware, and cryptography research
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Kevin Liu
ex-AWS | cloud engineer
Articles
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13
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Recent Posts
Follow the Hops and Reassemble the Symbols | Hopscotch | GaianSpace CTF 2026
Follow the Hops and Reassemble the Symbols | Hopscotch | GaianSpace CTF 20262026-10-24
High SF, Dragged Down by Drift | No Name on the Door | GaianSpace CTF 2026
High SF, Dragged Down by Drift | No Name on the Door | GaianSpace CTF 20262026-10-24
A Downlink Hijacked in the Dead of Night | Two Voices | GaianSpace CTF 2026
A Downlink Hijacked in the Dead of Night | Two Voices | GaianSpace CTF 20262026-10-24
Rebuilding the Agriculture Office's Satellite Check | Subsidy Claim | GaianSpace CTF 2026
Rebuilding the Agriculture Office's Satellite Check | Subsidy Claim | GaianSpace CTF 20262026-10-24
The Word Hidden Across Five Channels | Isodata Seven | GaianSpace CTF 2026
The Word Hidden Across Five Channels | Isodata Seven | GaianSpace CTF 20262026-10-24
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