Windows Plug and Play is the feature that detects new hardware and helps Windows install the correct driver automatically. It reduces setup work by identifying a device, matching it with a driver package, and bringing the hardware online with minimal user input.
In cyber security, PnP matters because driver installation sits close to Windows’ trust boundary. If an attacker can influence that workflow with a malicious device, a rogue driver package, or a misused vendor-supplied installer, they may gain code execution or privilege escalation. Real attacks and defenses often focus on this path: signed drivers, restricted device installation, least privilege, and monitoring for unexpected hardware or driver activity. PnP is convenient, but that convenience also creates a valuable attack surface.