Traditional digital security often falls short when applied to IoT environments, where devices are limited in processing power and exposed to a wider range of threats. Human vulnerabilities—especially against deepfake-style attacks—further weaken current systems. Static biometrics like fingerprints or facial scans are no longer enough. This work proposes a new direction: using the brain’s unique electrical activity (EEG signals) as a security layer. These dynamic, hard-to-replicate patterns offer a way to authenticate users without storing sensitive data or relying on heavy computation. By grounding trust in the user’s own biological signals, this approach offers a lightweight, resilient solution tailored to the constraints of modern IoT devices. Önder Key is a cybersecurity consultant specializing in critical infrastructure security, zero-day vulnerability analysis, and offensive security. He has advised organizations in high-security sectors such as defense, aerospace, and finance, with hands-on experience in both red teaming and strategic security engineering. His work has been featured across numerous countries and platforms, contributing to the discovery of systemic vulnerabilities. Currently, he provides consultancy to Burkut, Ogrit, Ravenailabs and continues to advance the global offensive security ecosystem by challenging traditional approaches to cybersecurity.