Neurotechnology is reshaping the frontier of human cognition by bridging brain and machine, but with profound ethical and societal implications. As devices decode and influence neural activity, questions of autonomy, privacy, and identity come to the forefront. Experts warn that safeguarding mental privacy and ensuring informed consent are critical to prevent misuse. Equally urgent is addressing how these advances may exacerbate social inequalities, challenging us to build inclusive policies that balance innovation with human rights.