QIF-T0069
highSeparatrix leakage (meta-biometric extraction from dynamical transition observations)
Tier 5 — Theoretical (Modeled / Simulated)
Legacy status: THEORETICAL
Extract individual identity information by observing neural dynamical transitions (state changes, attractor switching, bifurcation responses). Each person's brain has unique separatrix geometry — the boundaries between attractor basins in phase space. By probing near these boundaries (via subtle stimuli or environmental manipulation) and observing which way the neural state falls, an attacker extracts a dynamical fingerprint without requiring enrollment or stored biometrics. This is a side-channel attack on the brain's dynamical structure. Defense: Rate-limit observable transitions at I0, add noise to transition timing, detect probing patterns. Derivation Log Entry 45.
Technique Details
- Tactic
- QIF-D.HV
- Status
- THEORETICAL
- Bands
- N3, N4, N5, N6, N7, I0, S1
✚ Therapeutic Application
Extraction of individual neural identity from dynamical system transition observations (separatrix geometry fingerprinting)
Clinical Analog
Brain state detection for seizure prediction (transition pattern monitoring)
Treats
- epilepsy seizure prediction
- sleep stage transition detection
- anesthesia depth monitoring
Neural Impact
7 of 7 neural bands affected
Drag to rotate. Click a region to learn more.
Click or hover over a glowing region to see the attack techniques targeting it and their severity.
DSM-5-TR Diagnostic Mappings
Diagnostic category references for threat modeling, not diagnostic claims.
Pathway: N7 (PFC/M1) → executive function; N6 (hippocampus/amygdala) → emotion regulation
Following Poldrack (2006), brain region disruption does not uniquely predict psychiatric outcomes.
Scoring
NISS:1.1/BI:N/CR:H/CD:H/CV:E/RV:F/NP:N CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N Governance
Neurorights at Risk
This technique threatens 3 of the 4 proposed neurorights (Ienca & Andorno, 2017).
FDORA §3305 Compliance
- ! CVSS cannot express neural-specific impacts
- ! No FDA pathway for consumer sensor exploitation
- ! Threat not yet in regulatory threat catalogs
Population Vulnerability
CRB vulnerability adjustment (γ=0.30) accounts for age, diagnosis severity, consent capacity, and device dependency.
| Population | NISS Base | Adjusted | Severity | Delta |
|---|---|---|---|---|
| Adult (Default) | 2.7 | 2.7 | Low | - |
| Child (10yr) + ADHD | 2.7 | 3.2 | Low | +0.48 |
| Adult with ALS | 2.7 | 3.1 | Low | +0.44 |
Validation Status
Theoretical / Not yet validated. This technique has not been independently tested. See the validation dashboard for what has been tested.