Dual-use: therapy, tool, or coercion
The same interface that restores speech can, in principle, surveil or influence a mind. That is the essence of dual-use neurotechnology: benign and harmful applications share the underlying capability. Concerns run from workplace or state monitoring using passive, implicit-state readouts to the militarization of neuromodulation. Dual-use and neurosecurity policy tries to manage this without halting legitimate medicine — an export-control-style problem for which the field has, so far, only partial answers.
A second security frontier is technical: an interface that writes to the brain is an attack surface. Neurosecurity studies how neural systems could be spoofed, hijacked, or leaked from, and it argues that security and privacy engineering (the on-device and cryptographic measures of Guide 4) are not optional add-ons but part of the governance baseline for any read-write device.
The missing metrology: standards and benchmarks
You cannot regulate, compare, or reimburse what you cannot measure the same way twice. Neurotech still lacks mature, shared benchmarks: reported accuracies use different tasks, metrics, and populations, which makes cross-study comparison — and honest regulatory review — hard. Standards and benchmarking bodies (IEEE working groups and others) are building common terminology, safety standards, and evaluation protocols, but the metrology is far less developed than in older medical fields. Until it matures, consumer-neurotech evidence standards will stay weak and reproducibility and overclaiming will remain a live problem.
The enforcement gap
Rights on paper are not the same as protection in practice. Medical BCIs sit inside a strong (if imperfect) regulatory system, but much consumer neurotechnology — headsets marketed for focus, wellness, or gaming — falls outside device regulation entirely, precisely where users are least protected and claims are least scrutinized. The hardest governance work is not writing new principles but resourcing enforcement: regulators, auditors, and standards that can actually check whether a right is being honored across borders.
Governing what doesn't exist yet
Finally, governance must reckon with a moving target. Regulating capabilities that do not yet exist risks two failures at once: strangling useful research by over-regulating imagined harms, or waving through real harms by trusting the hype cycle. The discipline that helps is anticipatory governance grounded in an honest reading of the science — separating demonstrated from speculative, and revisiting rules as capability actually arrives. An honest reading of the next twenty years suggests governance should be built to update, because both the technology and our understanding of its risks will keep changing.