This $200 device taught me more about cybersecurity than school. In this video, I take an in-depth look at the HackRF PortaPack H4M and show how it helps you understand real-world RF security. You’ll see how wireless signals actually work, why attacks like replaying RF signals fail, and how modern systems use rolling codes to stay secure. This isn’t movie hacking — it’s hands-on learning with real radio frequency analysis. If you’re interested in cybersecurity, RF, signal analysis, or hardware h