A brain-computer interface or BCI is a device that translates neuronal information into commands capable of controlling external software or hardware such as a computer or robotic arm (and more). BCI systems included multiple technologies, including systems for the acquisition and decoding of neural and biophysical signals to actuators providing sensory, mechanical, and electrical feedback to the user. While the first generation of BCIs were invasive, technology development has led to non-invasive BCIs: multiple countries are developing their own version of BCI systems . Simple DIY BCI interfaces are also on the market [2, 3].The immediate and most popular BCI applications are in assisted living devices for individuals with motor or sensory impairments. Multiple countries are using BCIs for biometrics [1, 4] to monitor and diagnose Alzheimers, epilepsy, psychosis [5,11] and to restore motor coordination in stroke patients [4, 11]. BCI for drunk or sleepy driving monitoring, as well as monitoring alertness for workers in hazardous professions, is already in progress . In the next ten years it may well be possible that BCI devices may directly be used as neurodiagnostics and therapeutics.In the not-so-far future, it may be possible to present a powerpoint or excel sheet and access smart home utilities using only our brains. The downsides: What if companies may want to use BCI technology to monitor the attention levels and mental states of their employees? While the current considerations are for supportive medical devices, what happens when a BCI is used to control an attack drone? Will people be assessed for their motives and periodically brain-monitored to ensure that usage is dictated by true requirement and not personal bias? Or will BCI interfaces be reserved for people with exceptional decision-making capacities - how are these people identified then? Can the brain be “hacked” while on BCI systems? While BCIs are seen as interesting, there are concerns on data usage, hacking, mind control, potential social stratification, and government access . In fact, the Neurorights foundation, a Columbia University initiative promoted by the Spanish neurobiologist Rafael Yuste, proposes a Technocratic oath (akin to the Hippocratic Oath) for professionals working with neurotechnology and artificial intelligence  to prevent misuse. The technology is well ahead of the policies and regulations required - organizations like IEEE are putting together Neuroethics frameworks [8,9]. Other groups advocate open-source principles of adaptability and transparency to BCI tools to help democratize the technology, eschewing black box algorithms and limited access to data. This is one route to 'Accessibility, adaptability, and transparency ”of BCI tools  and better acceptability . Neuroethics at work and for general use will be a legal matter: developing frameworks and learning from the data privacy conundrums of today will help navigate the future of BCIs better .
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