Welcome to Neuro-Privacy Engineering: Protecting Brain-Computer Interface Data and Neural Information, where neuroscience, cybersecurity, ethics, and a healthy dose of skepticism collide. I'm Elias Redmond, and this book is my attempt to answer one unsettling question: How do we protect privacy when the data comes straight from the human brain? Brain-Computer Interfaces (BCIs) are no longer science fiction. They're helping patients regain movement, powering next-gen consumer tech, and quietly generating the most intimate data humanity has ever produced—neural data. Unlike passwords or fingerprints, you can't reset your thoughts. That's where neuro-privacy engineering comes in. This book breaks down the technical, legal, and ethical challenges of safeguarding neural information—without drowning you in jargon or pretending this is a distant future problem. We'll explore how neural data is collected, how it can be abused, and why traditional privacy models fall apart the moment your brain enters the cloud. Inside, you'll discover: Why neural data is more sensitive than biometric or genetic data How BCIs work—and where their biggest security weaknesses hide Realistic threat models, from data breaches to neural inference attacks Privacy-by-design principles for brain-computer interface systems Cryptography, anonymization, and AI risks tailored specifically to neural data Ethical questions around consent, cognitive liberty, and mental autonomy Legal frameworks, emerging neuro-rights, and what regulators are missing Future risks like brain-to-brain communication and predictive neural models Yes, the subject is serious—but the tone isn't a lecture. I wrote this book for engineers, researchers, policymakers, founders, students, and curious humans who want to understand what's coming before it quietly ships in a firmware update. Expect clear explanations, practical insights, and the occasional dry joke to keep your prefrontal cortex engaged. If you care about privacy, security, ethics, or the future of human autonomy in a world of neural technology, this book is for you. Because once technology can read the mind, protecting the brain becomes everyone's problem. Your brain is priceless. Let's start engineering like it.