Air-Gap security

on YouTube ↗48m

" summary

Demonstrations show air-gapped machines leak data over heat, sound, light and radio: HVAC-driven thermal signaling yields about 40 bits per hour for opcode-style commands; adjacent machines use BitWhisper; fan modulation reaches roughly 15 bits per minute at ~8 m; hard-disk seek noise and hidden-screen frames exfiltrate images and QR codes; AirHopper emits FM tones at ~10 bytes/sec across 8–20 m and USB cable emissions hit about 80 bytes/sec at 2–3 m. Practical mitigations include zoning and device bans, tape/LED masking, securing HVAC portals, sensor anomaly detection, Faraday shielding and signal jamming.

AI-written summary · about

" chapters (13)

1. 0:00Introduction
2. 0:38What is an AirGap network
3. 5:15Thermal Channels
4. 10:37BitWhisper
5. 14:18Ultrasonic
6. 16:10Fans Meter
7. 20:15Disk filtration
8. 22:43Optical channels
9. 25:49Image concealment
10. 28:42Radio channels
11. 34:05GSM
12. 40:40USB
13. 43:57Conclusion

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