QIF-T0071

Baseline adaptation poisoning (re-enrollment window exploitation)

Exploit the re-enrollment or adaptive baseline update window in BCI authentication systems. When a BCI recalibrates (daily calibration, post-seizure reset, firmware update, drift correction), inject adversarial signals during the enrollment period to corrupt the stored baseline. Three windows: (1) initial enrollment, (2) periodic recalibration, (3) drift-triggered adaptation. Once the baseline is poisoned, all subsequent authentication is compromised. This is the fundamental vulnerability that motivated QIF's baseline-free 'Biological TLS' architecture: by validating signals against universal biological physics (spatial dipole patterns, H-H compliance, 1/f scaling, microstates) rather than individual baselines, the entire attack surface is eliminated. Defense: Biological TLS validation (no baselines needed), multi-session enrollment consistency checks, anomaly detection during calibration windows. Derivation Log Entry 46.