Minimalist hardware is a design approach that uses as few components, interfaces, and dependencies as possible. In practice, it favors a small, well-defined system over a feature-rich one with many add-ons. Classic low-spec machines are a good example: the core device does one job, and every extra module changes how the whole system behaves.
In cyber security, minimalist hardware matters because fewer parts usually mean a smaller attack surface, less firmware to trust, and fewer places for bugs or misconfigurations to hide. It can make auditing, maintenance, and troubleshooting easier for defenders. Attackers, by contrast, often exploit complexity introduced by expansion cards, peripherals, or layered controllers, where interactions are harder to review. Minimalism is not automatically safer, but it can make a platform easier to understand and defend.