Air-Gapped Systems Still Leak: Dozens of Side-Channel Escape Routes

Researchers catalog dozens of ways to exfiltrate data from air-gapped systems, from LED blinking at 100 kbps to disk and fan noise, noting that speakers and microphones remain the easiest covert channels even after removal, with network driver tampering and copper cables posing further risks.

2026-09-18 ~ 2026-09-18 · 2 related posts

• Security researcher on air-gapped systems: acoustic and RF side channels can still leak data — EdSealing · 2026-09-18
• Air-gapping is leakier than you think: LED exfil at 100 kbps and dozens of side channels — dioscuri · 2026-09-18