3 ms·
Two meters seems like a pretty short distance to bypass an airgap. At that point, in the kind of situation where someone is actively trying to exfiltrate data,
by PoignardAzur 2y ago
Two meters seems like a pretty short distance to bypass an airgap.
At that point, in the kind of situation where someone is actively trying to exfiltrate data, couldn't they point their phone camera at a screen?
Like, maybe there are scenarios where the exit device is compromised without the wearer knowing, or the spy wants to remain discrete, but they seem a bit niche.
- abdullahkhalids 2y agoTwo ways this is useful: - It is possible that the airgapped system still has a publicly viewable screen displaying harmless information. But you use this technique to leak secret information from the system. - If the authors established that 2m is the maximum distance that you can reliably leak information this way, then that is in principle useful information for someone designing the security system. No audio recording software allowed within 2m of the screen!
- angstrom_ 2y ago[dead]
- gwern 2y ago"Attacks only get better." It's 2m... now.