Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Security in Brain-Computer Interfaces: State-of-the-art, opportunities,
  and future challenges   BCIs have significantly improved the patients' quality of life by restoring
damaged hearing, sight, and movement capabilities. After evolving their
application scenarios, the current trend of BCI is to enable new innovative
brain-to-brain and brain-to-the-Internet communication paradigms. This
technological advancement generates opportunities for attackers since users'
personal information and physical integrity could be under tremendous risk.
This work presents the existing versions of the BCI life-cycle and homogenizes
them in a new approach that overcomes current limitations. After that, we offer
a qualitative characterization of the security attacks affecting each phase of
the BCI cycle to analyze their impacts and countermeasures documented in the
literature. Finally, we reflect on lessons learned, highlighting research
trends and future challenges concerning security on BCIs.

29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga