> This RF leakage, however, is extremely weak and buried under noise and other transmitted signals that can be 3-5 orders of magnitude larger. Hence, it is missed by today’s radios. We design and build Ghostbuster, the first device that can reliably extract this leakage, even when it is buried under ongoing transmissions, in order to detect the hidden presence of eavesdroppers.
But even if it were to work in a Faraday Cage, the real life application would be really tough to implement. Owing to the fact that →
1) We don’t know how big the Cage should be.
2) There could be possibly many benign gadgets in the Cage’s sphere which could be unnecessarily affected.