Noam Brown questions air-gapping as a standalone AI safeguard; covert-channel research shows the wider surface
Brown's September 17 warning points to BitWhisper, but Digging Beagle tracks 18 physical, sensor and AI-related research records, including 2026 work on video-cable emissions and near-ultrasonic LLM prompts, plus a 2025 image-injection paper posted to arXiv in 2026.