QIF-T0095

Acoustic-to-neural profiling pipeline (consumer earbud escalation from audio to cognitive exploitation)

This technique documents the complete escalation chain from a single compromised consumer earbud to cognitive profiling. The chain proceeds: (1) T0072 — Speaker-to-mic reprogramming gives ambient audio eavesdropping, (2) T0079 — Ear canal acoustic fingerprinting silently identifies the wearer, (3) T0073 — Modified earbud with conductive ear tip captures in-ear EEG, (4) T0074 — Longitudinal EEG data feeds ML model for cognitive profiling. The end state: a single pair of compromised earbuds provides identity + ambient audio + continuous neural telemetry + personalized cognitive vulnerability profile — all from a device the target voluntarily wears for hours daily. Each step in the chain has been independently demonstrated or is emerging. The complete chain represents a consumer-device pathway to cognitive exploitation without any traditional BCI hardware. This is the canonical example of why the S-domain exists: consumer sensors as a pre-BCI attack surface.