---
title: "Funtenna - Red Balloon Security"
description: "Learn about Red Balloon Security’s original research, Funtenna, a software-only technique that demonstrates the exploitability of air-gapped networks."
date: "2021-11-19T17:24:39+00:00"
language: "en-US"
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---

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# FUNTENNA










## BREAKING THE AIR-GAP










Improvisation of a RF transmitter via GPIO to overcome air-gapped systems.
























## FUNTENNA










## BREAKING
THE AIR-GAP










Improvisation of a RF transmitter via GPIO to overcome air-gapped systems.























## CLIENT





Internal R&D










## YEAR





2015














Funtenna is a software-only technique which causes intentional compromising emanation in a wide spectrum of modern computing hardware for the purpose of covert, reliable data exfiltration through secured and air-gapped networks. Funtenna was developed through internal research which presents a technique that is hardware agnostic, can operate within nearly all modern computer systems and embedded devices, and is specifically intended to operate within hardware not designed to to act as RF transmitters.





[http://www.funtenna.org/CuiBH2015.pdf](http://www.funtenna.org/CuiBH2015.pdf)























## CLIENT





Internal R&D










## YEAR





2015














Funtenna is a software-only technique which causes intentional compromising emanation in a wide spectrum of modern computing hardware for the purpose of covert, reliable data exfiltration through secured and air-gapped networks. Funtenna was developed through internal research which presents a technique that is hardware agnostic, can operate within nearly all modern computer systems and embedded devices, and is specifically intended to operate within hardware not designed to to act as RF transmitters.

 

[http://www.funtenna.org/CuiBH2015.pdf](http://www.funtenna.org/CuiBH2015.pdf)















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